Yes, it seems quite random to me. I’ll try to be a good debugger and find a good way to reproduce it.
I’m on OSX 10.8.5, the latest public release.
I’m also getting quite a bit of these in my logs:
Glyphs Mini[5549]: objc[5549]: Class ARCLite is implemented in both /Applications/Glyphs Mini.app/Contents/Frameworks/AGRegex.framework/Versions/A/AGRegex and /Applications/Glyphs Mini.app/Contents/PlugIns/TransformPanel.glyphsPalette/Contents/MacOS/TransformPanel. One of the two will be used. Which one is undefined.
Double click lowercase a in the Font tab to open a new tab with it
Go back to the Font tab, double click lowercase b to create a second tab.
Go back to the tab of the lowercase a, at the bottom right of this tab is a font size text field between the + and -. Select whatever is inside this textfield and press backspace to delete the content. press enter.
Don’t click anywhere outside of this textfield, it should keep focus I think.
Click the ‘x’ on the top of the other tab (the one with b in it) to close that tab.
The text field still has focus and will show through, sometimes other views will also keep showing through on the wrong tabs, eventually Glyphs crashes.
You can do the same trick in the Font info tab with the family name text field, and I’m guessing others too…
I hope this helps somehow, it was so difficult to reproduce!
I don’t remember if I mentioned this one yet:
when you are in a tab and have selected the Text tool, when you keep the ‘o’ down to make the context menu containing “ö ó ô ò õ” etc. pop up, Glyphs Mini crashes.