undo not working

Same here, so annoying.

I'm having the same problem.
I've tried  everything, Undo simply DOES NOT work.

Same here 😞
Happened today as I worked with photogrammetry objects. Very high poly count but ob to work with. Somehow I only can do camera undos. CTRL + Z shows only "undo selection". Help !!! 😞

Mine is also not working. 

I am also having this issue. Undo is not working in Dimension (from the menu or command-z). I can't figure out why. I've quit and restarted Dimension. It still does not work. I am trying to undo operations which normally can be undone with the command (e.g. adding assets, changing object position, etc.)

That looks like a bug. Please report it here  https://feedback.adobedimension.com/-adobe-dimension-feature-requests

some things [like camera angle] are not part of the undo command

the same happens to me, i don't know how to fix it i need help