Unlocking beta art problem

[Rouki]

So I've succeded at killing the heart with Ironclad for the first time.
It said at the end of the run that I've unlocked the beta arts.
But I can't see them. If I play with some mods, would that interfere with unlocking them? (only qol relic stats mod)

[Spawnling]

I think mods disable achievements which might disable unlocking beta art. There should be a mod that enables achievements.