Undo needs to be executed twice to work

3.3.1 (3342) on macOS Monterey 12.7.5 (21H1222)

It takes at least 2 undo’s to undo the last action. Recording:

In the above video it’s 2 presses, but I’ve noticed in other places it’s 2–4.

Can you try to start without plugins. Hold down the Option + Shift key when you start Glyphs.

Ok indeed it is a plugin that’s doing this. I’ll try figure out which.

So you have the sync metrics plugin?

Yes it was that plugin!