While I was doing CoC a Lumbering Heap did not spawn. In the enemy box it said there were supposed to be 2, but there was only one on the board. After killing all enemies that were on the board I was 2 stars short of completing the level with no way to gain them. The non-existant Lumbering Heap did draw cards, but could not be seen/killed/targeted. https://steamcommunity.com/sharedfiles/filedetails/?id=2681349846
I know this can be hard to describe but do you remember which board this happened on? It's almost certainly a spawn point issue. If you see it again, a screenshot would be really helpful! Thanks, and sorry about the bug
The screenshot is in the link below my post. https://steamcommunity.com/sharedfiles/filedetails/?id=2681349846