My Ge has this strange error, where symbols start replacing text in the menus:
It then crashes upon your next menu click, though if i click save, it does successfully save before the crash.
I tried to fix this by editing gameeditor.ini, and making the following changes:
MaxUndoLevels=0
PersistentUndo=False
Remember to always create a backup of an ini file before editing it!
The problem got better, but it still persists.