Units and resources vanished.
So, i have been sieging npc town and ordered enchanters to build treants. But, somehow i managed to unselect enchanters and treant summoning spell was still asking for a place to summon a treant (i dont have a screenshot of it, sadly). Then, i somehow canceled treant summoning and after that i could not select any unit. Actually i could, but no portraits were showing, so i could not level up any unit or change stance for archers. I decided to leave the siege and entered world map. After that i tried to look at my army in a random place near, and still could not see portraits. I Also lost every resources i had in that army and also some units vanished.
Portaits problem solved by restarting a client, but units still missing. Not much of problem with the units though. I already bought new ones, but this was a nasty bug.
Dont mess with treant summoning guys =) if u plan to summon them, just do it, dont try to cancel.
I will attach 2 screenshots.
Screenshot11 - portraits bug.
Screenshot00 - units vanished bug (army size 44. was 60)