I've been playing as the Sauromatae for a while now and I've noticed that the only nomad provinces are the ones you start off with, all other cities can only get pastoralisation. I think it's strange that there's only 3 nomad provinces, I looked at the nomad resource map and it showed a lot more of the provinces were nomad, but I can't build nomadism there. Is this a bug where Sauromatae can't build Nomadism? It's really annoying too because I have to get all my horse archers from my capital.