Basically going to link the snippet I put on the modded part here:
Been off from the forum for a good while, but something quite funny happened to me today after returning to the game, the game got stuck on the alien's turn because the enemy tried to enter a tile that they couldn't see through, but a unit of mine was on the other side.
XD
Going to attach the save to this, but perhaps this isn't just a modded thing, so will also notify the general topic about this bug...
Kisses to you all and happy late new year!