tag patch thanksSo, having delved into this, I managed to figure out, and partly circumvent, the issue. It's a race condition between the overlay window getting destroyed, and the screenshot being taken. Here's a patch that's applicable against the XFCE git master. The problem still appears if you select a delay time of 0, but since that wasn't even possible before I made it so (dunno wtf I'd need to wait on the modes without this overlay problem??), I take it as no biggie; simply make the delay >= 1 sec, when in region mode.
0001patch-grayfixbranch.patch
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