@cameronwhite , should I open an issue for the "unhandled exception", or you want to wait for final build of 2.2 ?

Yes, please do file an issue - this is definitely something I'd like to fix before the release. I haven't had much luck yet reproducing it on my Windows machine though :/

Created issue:
#674

@cameronwhite ,
This is related to behavior's of the 2 columns toolbar.
When working (not related to crash), I've noticed that depending on the selected tool,
some ratios of border/margins/padding change.
If you changes tools quickly it looks like the image is "jumping".
See attached image.
You can see in points A and B, that the sizes are different (need to zoom, its only 2-3 pixels) based on tool used.
Maybe this is a result of the height of the "Replace" combox-box ? it looks higher than others.

I think this might have been fixed already in the master branch with 3e3d3f3, which added a slightly larger default height so that it doesn't jump when the larger combo boxes appear