Undo does not work


I have a small problem. After updating to 2017.3.1, I cant use undo in my scene… This is what is shown when i click on Edit and try to click on undo manually.

No matter what I do, this is what it shows like. I can do anything, move an object, or delete one, and it will always say “Undo Driving RectTransform”.
What can I do to fix this?

Thanks! :slight_smile:

I found the problem, and I believe it is a bug.
On the Canvas object I had, I had the “Aspect Ratio Fitter”, and tihs is where I think the bug is.
This were constantly updating, so the “undo” were always being overwritten.

After disabling this, the problem went away.