I also find it hard to imagine how it is possible not to reproduce the problem. However, we need to move in this direction. I have several ideas.
- Perhaps the game update did not remove part of the old code and a bug occurs. To test this, I completely deleted the game and reinstalled it. If the bug goes away, I will let you know.
- You should try testing from different accounts, so that one has the Frostline map installed, and the other does not have this map installed (it was not purchased and was not installed). Perhaps this map has additional code that fixes the bug.