an issue that appears now and then is a window that tells me that undo doesn’t work with the current glyph.
As far as I noticed it happens after dragging nodes, segments and also components.
I’m using a Wacom Intuos tablet, the current glyphs version is 1200.
That is mostly a problem with the Wacom driver. It doesn’t post the mouse events in the right order and sometimes misses some altogether. That confuses Glyphs. I have a small Bamboo but that has a different driver than the big ones. If I have some free time, I should borrow a big Wacom to test this.
Maybe related. If I select everything in the background layer, delete it, copy the foreground, paste it into the background and then undo everything, the background layer doesn’t restore what was deleted.