I was keeping the realm of Siralim safe by battling hordes of monsters when suddenly . . . most of my creatures decided that I no longer was a good King and left me alone in the wild. Only my faithful Stronghold stood up to the others and stayed with me.
I got a chest spawn at the end of the battle and I think I moved at the same moment, so for some reason my creatures split. But it’s all right, it just seems to be visual: I fought another battle afterwards and all went back to normal. So please, if you find the source of the bug, don’t fix it! It is too funny! ;D