I use the undo-tree package from GNU Elpa. Recently, the undo command (undo-tree-undo) stopped working when I edit .tex files with AUCTeX (in LaTeX-mode). As far as I can tell, it works as expected in all other modes. Emacs seems to hang and I have to hit C-g repeatedly to be able to edit again. The default M-x undo command still works.
Since I have a lot of customizations, it's possible the cause is somewhere in my init file. But before I try to track it down, I wonder if anyone else experienced this problem and have some ideas. Thanks!
