I am using a spreed spread sheet that will crash every time I try to undo an operation. For a while, it would also freeze when copying and pasting only by right clicking and using the copy and paste options in the right-click menu. When I use the keyboard to copy and paste, Ctrl-C and Ctrl-V, it would not freeze. But I disabled Live Preview and that seemed to help my copying and pasting problem. But I still can not get the undo freezing problem to stop. I have no active add-ins, I have disabled all of them.

I would really appreciate any other options I may go about to solve this problem.

Thank you