Hi, I'd like to try this editor as it looks really promising but I can't create new project in v3.3.0. It may be due to permission changes in OSX Catalina. I tried to open devtools and there was no error in console.

I have the same problem. I downloaded the osx version of v3.3 and it launches, but the UI freezes up after a few seconds and is completely unusable. :(

Oh, I think I figured out what was wrong. I put my OGMO project file on my Desktop, which has loads of deeply nested folders which OGMO was trying to peer into. Once I made a subfolder and put my OGMO stuff in there, it was fine.