While doing Tomb of Savings map 2, I killed two tombstones near the end of round 7, I believe one from each group. At the beginning of round 8, one of the tombstones should have respawned on the map, but was not immediately visible. (I only counted 5; but both groups were 3/3. There is a chance I may have overlooked it in one of the corners of the map, but that would have meant it moved further away, not towards my lone character, which is against all other movement behavior I have seen them exhibit.) I proceeded to kill off two more tombstones in round 10. At the start of round 11 one of them (Bodyrock, there is a BATTLE WARNING message at the start of that round) appears to have respawned off the board, a little to the right of the top corner of the board, meaning it was impossible to target, hit, or kill, making the map impossible to complete. The BATTLE WARNING indicates that it tried to respawn on a Flash Flooded square. I killed the other 5 in round 12, but of course could not win. Battle log included. (The junk at the very end is likely related to a soft freeze that was not directly caused by Card Hunter, as it happens from time to time to me with Firefox anyway.)