Uninvited guests.

By the way, is it possible to make it so that when exiting a portal, the movement points are fully restored? Otherwise, it seems unfair that heroes standing furthest from the portal spend almost all their movement points just to exit. And also, returning to the wall. It would be great if the bonuses were taken into account. For example, "Lord of Fire" in the Chaos magic branch. I suppose this would require a script so that the hero casts the spell. Although, I've read a bit, and as far as I understand, there were some difficulties, for example, with mana, which became more than it should.

Added after 23 hours 45 minutes
I found another bug with the Dark Elf. Basically, it's the same, but with new details. After level 11 (if I didn't miss level 10), the Dark Elf casts two walls. So, I attacked three groups of devils on an arena with four eyes in the corners, which is often found in the dwarven Dungeon, but this time it was on the surface. The devils, as befits large creatures, occupied the 2nd and 3rd cells, the 5th and 6th, the 8th and 9th. The eyes occupied the 1st and 10th cells, respectively. Usually, if there are three large creatures, the walls are cast on 2-4 and 8-10, but here the eye interferes. That's it.