Trying to create mounted spearmen and slayers in the warg buildings, they won't work. The building gets the groops, but it doesn't generate anything. The unit dissapears, using the resources but giving nothing.
This happens on the orc forest town. So far I'm unable to produce any horsemen on any warg building, doesn't matter if it's a new one, if there are wargs spawing, etc. It doesn't happen with any other unit.