I saw one of the colossal regular creep (one with big cuboid sword) getting stuck in the bottom base between the breast plate shop and the boot shop trying to get across the cliff to the top.

Also, unclean beast seem to have a habit of stopping instead of walking towards a shop if you click on the shop while UB is close but not close enough to activate the shopping menu.

Edit: Okay actually I don't know if it's something to do with the frozen notification text bugs

Since that appeared, the colossals get stuck here and there. 3 stuck and overlapped on same place, between the first set of tower of lights at the bottom left. Subsquently blocking the path. All the creeps that follows are hence also made stuck.

Attempt to make my Demigod pass would mess up the pathfinding and the Demigod heads towards the bottom, i.e. no where