[solved] Tutorial, cannot open main.collection "Could not open the editor"

Working through the frog-jumping tutorial, got to the refactoring stage, removed ground.collection from main.collection and put level.collection in there in its place and then, I can’t build, I can’t open main.collection.

Should I just delete and recreate main.collection? Has it become corrupted somehow?

When I try to build or rebuild I get:

Errors occurred during the build.
Errors running builder 'Content Builder' on project 'Getting Started Tutorial'.
Build failed: null
com.dynamo.bob.CompileExceptionError
Build failed: null
com.dynamo.bob.CompileExceptionError

When I try to open main.collection I get a “Could not open the editor” error. The full message exceeds the message-limit size, but here’s a sample:

org.eclipse.ui.PartInitException: 
	at com.dynamo.cr.sceneed.ui.SceneEditor.init(SceneEditor.java:232)
	at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:828)
	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647)
	at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
	at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2958)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2863)
	at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2855)
	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2806)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2802)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2786)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2777)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:655)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:614)
	at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:99)
	at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:99)
	at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)
	at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185)
	at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
	at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
	at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864)
	at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152)
	at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462)
	at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256)
	at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275)
	at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4136)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1458)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1481)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1466)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1271)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3982)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3621)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at com.dynamo.cr.editor.Application.start(Application.java:42)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: java.lang.StackOverflowError
	at java.io.UnixFileSystem.getBooleanAttributes0(Native Method)
	at java.io.UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:242)
	at java.io.File.exists(File.java:819)
	at com.dynamo.cr.branchrepo.BranchRepository.ensureProjectBranch(BranchRepository.java:90)
	at com.dynamo.cr.branchrepo.BranchRepository.getResourceInfo(BranchRepository.java:154)
	at com.dynamo.cr.client.LocalBranchClient.getResourceInfo(LocalBranchClient.java:92)
	at com.dynamo.cr.editor.fs.internal.RepositoryFileStore.getInfo(RepositoryFileStore.java:42)
	at com.dynamo.cr.editor.fs.internal.RepositoryFileStore.fetchInfo(RepositoryFileStore.java:69)
	at org.eclipse.core.filesystem.provider.FileStore.fetchInfo(FileStore.java:280)
	at org.eclipse.core.internal.localstore.FileSystemResourceManager.read(FileSystemResourceManager.java:778)
	at org.eclipse.core.internal.resources.File.getContents(File.java:289)
	at org.eclipse.core.internal.resources.File.getContents(File.java:278)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:1)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:67)
	at com.dynamo.cr.sceneed.ui.LoaderContext.loadNode(LoaderContext.java:52)
	at com.dynamo.cr.go.core.CollectionLoader.load(CollectionLoader.java:130)

Yes, try and recreate the main collection. From the looks of it it seems like there some kind of cyclic reference thing going on.

Thanks, deleting and recreating it worked.