As in title. It works really weird. When i select 2 (or more) barracks and try to queue muiltiple units it is only queue'ing for one and then saying that production queue is full.
I have tested it on both 1.4 and 1.5R7 with same results. Dunno if there is a mod fixing that or is it normal, so here i am; asking.

Hi, did you change to MQ instead of SQ before starting the game?

Or right. I finally found it. Many thanks! I was searching in voobly options. May i ask what does it mean? The SQ/MQ and what does it change.
Also (a little offtopic though, sorry) my game is on really low FPS (12-25) during battles. I only use "start in windowed mode". 2 sec lag is one thing, but 12fps are hurting

SQ - single queue , MQ - multi queue
Try using suggested voobly settings as shown here https://www.voobly.com/files/view/31695090/db4efrmhsw88gf2wefkakbmj9nqvfr7r/VGR8.png