No, that does not happen with Radious and submods only.

Hmm I only have the GCCM unique capitals, HN Banner Overhaul 2 and Mega Faction unlocker and managed to play about 110 turns in my campaign with no issues until all of a sudden my Generals and Heroes stopped earning XP. I've started a new campaign with all the same mods and the Heroes are gaining XP again....

I´m afraid unlockers make Radious mod unstable as there are no compatibility mods, which means you can experience random bugs at any time as you have just seen.

I am only running Part1 and 2 for mods and I can confirm that Generals are not getting exp.

That´s cant happen with just this mod.
Even the guy who started the discussion admitted he was using an uncompatible mod.

Generals and Heros not getting xp is why i stopped using this award winning team created mod. Years ago.

That´s something nobody has aever complained about in years, despite many thousands of people playing with this mod. And the creator of the discussion himself admitted in his second posr he was using an uncompatible mod.

Xp always worked in our mod without issues, there was not even 1 day when it did not.

If you are using overhauls, best is to remove other outdated or conflicting mods.

Our mods and official submods working fine and xp is rewarded as they always been.