I tried with some different options but I can't reproduce the issue. I did find a count problem with the option "Match whole word", but nothing else...
I tried this with both the exception catching software enabled and disabled and there seems to be a very noticeable difference. It should work faster in the final release (release version without the exception catcher).
Please use this forum when posting bug reports for beta versions. It will keep the normal bug report thread a bit cleaner and all beta related issues in the same place.
Well, the crash occur in the exception catcher software and not in the main program. It's not 100% reliable (and never has been) but it's still usable in a beta build to catch problems...