During this last dev cycle we've switched from GTK2 to GTK3 for Linux users, and fixed some bugs related to input methods (IM).
Unfortunately some of the older work-arounds for input methods will cause crashes if used with recent builds. This appears to be an issue of the fixes loading GTK2 into the process along with Sublime Text loading GTK3.
If you have any of the following configured, please remove them if you are running any build newer than 3180:
With build 3186 we fixed issues related to proper IM support on Linux, so these work-arounds should no longer be required.