It seems no crash report was created, and I didn't get a screenshot.

I was in tactical combat against a pack of three wolves.  I moved forward one tile and attacked a wolf.  Then the attack animation kept looping over and over again, and the words miss...-20...-20...miss...miss...kept flowing up above the units' heads.  I pressed [print screen] and alt+tabbed out of the game.  When I pasted the screenshot into MSPaint, it showed just a black screen (that method worked fine for screenshots in the previous beta, not sure if the black screen was due to the bug or if the method just doesn't work anymore).  When I tried to alt+tab back into the game, it crashed.