the undo being wonky, or maybe i never noticed

Mistara

after i load something from library, the undo won't unload it.

undo won't set a slider back to where it was after i try a change

Richard Haseltine

Undo doesn't remove content - I admit that can be a nuisance sometimes. It should, however, undo changes to sliders - is it failing in all cases or only for certain things?