Anyway to fix the undo/redo stack?

DrunkMonkeyProductions

Been dealing with this for some time, but the undo/redo stack seems random as to what does and doesn't go on it, where it is in the list, and what's displayed in the Edit menu.

Most recent one, accidentally deleted a g8f.

When i hit CTRL+Z, it didn't bring the character back.

Hit it again, brought the character back, but had removed the material preset i'd applied to her panties. Which was done before the delete.

The Edit menu showed, Undo of a material preset of the other surface on the panties, and Redo of a camera zoom, but if i hit CTRL+Y, the character again deletes.

Delete it again, and the redo/undo shows the delete this time.

 

Other times, apply a pose preset, and it doesn't undo, nor show in the menu.

Other times, it doesn't do anything.

 

Just wondering if i'm doing something wrong or this is a known bug?

Currently on 4.22.0.16.