Hey, that's an interesting issue, thanks for reporting it. I'll look into it and report.
Btw I got stl import working yesterday. Imma work on the export and integrate that into the app, and you should have this ready in the coming days I think.
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That's awesome, I'm rooting for you! I've been searching for an easy to use modeling solution. I'm very used to Microsoft 3D builder but since I left Windows for Linux nothing really matches up.
Already really like your program, so if you need a tester for Linux let me know! I also know how to package software too. I develop myself but nothing like this or with Godot.