I played with my boyfriend and the first bug we encountered was that an enemy attack marker (the square around the cell with an arrow) remained visible indefinitely after the enemy was destroyed. This was a bit confusing but didn't keep us from playing. Then later we tried to finish our turn early and the warning message window would not go away even after we clicked "yes" several times (meanwhile the enemy turn was playing in the background). We had to click "no" eventually, which closed the window but made the game non responsive (no inputs worked after that). I hope this helps, I'll definitely check the updated version out!
Viewing post in Out of the Breach jam comments
Hey! I've uploaded the post-jam update version. I didn't find what the problem was (I was unable to reproduce it) with the warning message window, but I did rewrite that code to a hopefully more stable version. I've also changed the way attack markers are cleared, and in case that isn't enough I made sure they're all removed when the aliens' turn is done. There's also a Windows desktop build now, though if you use it, I recommend sticking to the default 800x600 resolution.