Uninvited guests.

Hello, first of all, thank you for the map. I was very intrigued to learn that the map was created by the author of my favorite campaigns. Thank you for those as well.
I decided to play as the Temple, and everything was going well until I tried to attack enemy heroes. For some unknown reason, when attacking heroes or a crypt (I didn't have time to try other banks), the Fire Wall spell doesn't cast, and the battle just freezes. I decided to play as the Elf for now, but I would like to play as the Temple as well. I hope you will fix this bug or point it out to me.

Added 18 minutes ago
Addition. Immediately after the message, I thought, restarted the map, and attacked the crypt again. This time it worked. And in the next four times as well. Once, however, the Fire Wall missed because it prefers to hit the last line, and if the creatures are on the second-to-last line, they successfully dodge it. After that, I decided to fight various different units. I suspect that the wall doesn't want to cast if the enemy occupies at least 16 cells (i.e., 4 large creatures, for example), because each time the battle froze in this case. However, the first time I attacked the crypt, there were 30 skeletons and 15 zombies, a total of 2 cells, and I also attacked a Necromancer with 3 squads of skeletons, zombies, and ghosts. I'm at a loss, in general.

I suspect that the wall doesn't want to cast if the enemy occupies at least 16 cells (i.e., 4 large creatures, for example), because each time the battle froze in this case.