Hi, I have this problem, it seems it's only happening when I create a game myself tho, on other games it works fine it seems?? so might be a setting I don't do properly:

When I select multiple buildings, say 3 stables, and I want to create say 3 knights, I click 3 times on the knight icon or use 3 times the hotkey, and they all queue in the same building instead of 1 knight in each stable. Can somebody help me about that? thanks a lot.

I guess you use SQ.
You have to use MQ, only the host can choose this and you find this option in the starting screen of the game.

Thanks!