Is a modded MP campaign possible?

I recently tried to launch a MP campaign with a friend, and wanted to include some low-gameplay impact mods in our playthrough since I believe TTWH really benefits from some quality of life and flavor mods. It was 10 mods, including favorites such as recruit defeated legendary lords, one button respec, strategic ressources benefits, Mixus unlocker and legendary/immortal landmarks among others. We both used a mod manager and used the same mods activated in the same order.

Yet, my friend was unable to play with me, His game saying that his game files were incompatible.

Did anyone experience something similar? Do you have some workarounds or is a modded campaign straight up impossible?

Thank in advance to anyone having infos