Originally Posted by
QuintusSertorius
Ah, I just realised what it is.
All Roman recruitment has an event_counter against it - either Camillian, Polybian or Marian. The CamillianEra is activated at the start of the game, but that automatically depletes any pool it's in (can't do anything about that, it's hardcoded, new phases zero the pools when they happen). There's a script that replenishes the pools for the infantry in Roma at the start, but doesn't do anywhere else or any other units.
So all those places will eventually replenish, they just don't start the game with anything. I think that script needs revisiting to give everywhere something to begin with.