Before I start, please do NOT move my thread again into "Recruited less troops as requested", because this is NOT the same issue.
I play on server RO Lips.
The issue is that we cannot train troops, where the required number of citizens for that specific type unit is greater than 1.
The issue comes from the fact that, on that server, the number of required citizens for terrestrial army is less than on a normal server.
For example, in order to train 1 Steam Giant we only need 1 citizen instead of 2.
Next, in my screenshots, you can see that even I have 79 spare citizens in my town, I cannot train 50 Steam Giants, which only require 50 citizens:
