I purposely put a large amount of tier 3 units in my garrisons to keep them cheapish. The Training Fields buildings continuously upgrading my units is causing way too many promotions to occur automatically, and over the course of a long game my garrison's are getting flooded with high tier units I don't want.
Adjusting the XP gain per day will not fix this, because it is not very high anyways. The issue is our stored armies are being changed without our permission. The XP should be stored on the units, and we should be able to go to our garrisons and upgrade them as we choose, like we would in the party menu, the garrisons should not be automatically upgrading the units. I believe it worked this way in Warband.
Adjusting the XP gain per day will not fix this, because it is not very high anyways. The issue is our stored armies are being changed without our permission. The XP should be stored on the units, and we should be able to go to our garrisons and upgrade them as we choose, like we would in the party menu, the garrisons should not be automatically upgrading the units. I believe it worked this way in Warband.