I’m not getting the same problem when I try on Windows 10, but I have a clue as to what may be causing it in your case. I’ll see if we can create a fix.
Correction: It exists in the JDK that we bundle with the editor (OpenJDK 11.0.1), but for some reason it’s not included in the editor bundle. I’m investigating.
It’s a problem with the editor update. We’re going to push a new beta version of the editor later today to fix this. The solution if you don’t want to wait is to download the full editor from d.defold.com/beta and replace the one you have.