Glyphs 3: Undo function deletes the entire glyph

Is this an issue other people are experiencing or just me?

You have added that glyph recently?

yes-- anyway still it doesn’t go back to the last edit I made (after a lot of edits), but instead deletes it altogether. and i can’t redo it, so everything gets lost.

How did you add the glyphs?

Duplicated an existing glyph and renamed it. It’s not usually how I use glyphs haha, I was just testing a few new features/doing some animation with variables.