I am currently playing as Charlemagne and once I have researched mounted infantry I can no longer recruit archers. I did see there was a thread on this about a year ago in which Lexi from CA said they were looking into it, however I haven't seen any resolution. Anyone have this happen to them and if so do you know of any workaround (aside from starting a new game/ reloading)? I consider it a game breaker as I rely on archers quite a bit, and reloading to not research mounted infantry of course keeps several items locked in the military tech tree. Shame if such a huge bug (IMO) has not been patched.
Edit: playing the vanilla version of the game, no mods.