Find stopped working in build 2170

Not even sure this bug report will be useful... After installing build 2170 (32-bit linux) and using it for several hours, the Find command stopped working.

Using either Ctrl-F or "/" in Vintage mode had the same problem.  The Find box would open, but as I typed, most keys where ignored, sometimes it would register one, such as an "e", and highlight the "e"s on screen, but that's it.

Restarting ST2 didn't fix it, but when I went back to 2169, I could Find again.

Pretty vague, I know, feel free to ask me anything.