Happened again. From the log:
2019-03-13 19:50:55.176 12190057 [JavaFX Application Thread] INFO editor.ui.updater - {:line 24, :message “Update failed”}
java.io.FileNotFoundException: B:\Defold\packages\jdk11.0.1\lib\modules (Požadovanou operaci nelze provést se souborem, jehož uživateli mapovaný oddíl je otevren)
I guess I’ll just refrain from updating for now.
I get it too
2019-03-14 17:49:28.774 22050 [JavaFX Application Thread] INFO editor.ui.updater - {:line 24, :message "Update failed"}
java.io.FileNotFoundException: E:\Program Files\Defold\packages\jdk11.0.1\lib\modules (The requested operation cannot be performed on a file with a user-mapped section open)
at java.base/java.io.FileOutputStream.open0(Native Method)
at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:237)
at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:187)
at clojure.java.io$fn__11516.invokeStatic(io.clj:355)
at clojure.java.io$fn__11516.invoke(io.clj:354)
at clojure.lang.MultiFn.invoke(MultiFn.java:239)
at clojure.java.io$copy.invokeStatic(io.clj:406)
at clojure.java.io$copy.doInvoke(io.clj:391)
at clojure.lang.RestFn.invoke(RestFn.java:425)
at editor.updater$install_windows_file_BANG_.invokeStatic(updater.clj:218)
at editor.updater$install_file_BANG_.invokeStatic(updater.clj:223)
at editor.updater$install_BANG_.invokeStatic(updater.clj:240)
at editor.ui.updater$install_BANG_.invokeStatic(updater.clj:19)
at editor.ui.updater$install_and_restart_BANG_.invokeStatic(updater.clj:29)
at editor.welcome$init_pending_update_indicator_BANG_$install_and_restart_BANG___148410.invoke(welcome.clj:587)
at editor.ui.updater$init_BANG_$fn__148177.invoke(updater.clj:61)
at editor.ui$fn$reify__12233.handle(ui.clj:798)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8879)
at javafx.scene.control.Hyperlink.fire(Hyperlink.java:154)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206)
at com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3862)
at javafx.scene.Scene.processMouseEvent(Scene.java:1849)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2590)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:409)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:299)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:447)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:411)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:446)
at com.sun.glass.ui.View.handleMouseEvent(View.java:556)
at com.sun.glass.ui.View.notifyMouse(View.java:942)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)
Windows 10
Yeah, I’m working on it.
Nice! Re-downloading the editor worked though 
Released a version that should update correctly on Windows from now on. Since fix is in the new version, Windows users need to download it from the dashboard to get new updates successfully. Sorry for inconvenience!