I have a quality (cheat) mod that levels things up as they are used. Now my rings are 2 dots (uncommon), and they won't work anymore. Is this fixable?

I think the other mod replaces the ring by script, which breaks logic for this mod.
Link the mod and I will look into it, if this can be fixed.

https://mods.factorio.com/mod/upgradeable-quality
It upgrades nearly everything except belts.
Current workaround is to pull/replace the rings when they level, and name them only after they've reached legendary.

https://mods.factorio.com/mod/upgradeable-quality/discussion/674790408a1e9439fabe5156
This thread suggests the mod allows blacklisting. If that is the case, no changes are needed.

ring-teleporter-sprite, ring-teleporter-back, ring-teleporter-front, ring-teleporter-barrier, ring-teleporter
are all entities the mod uses, so adding these should prevent quality mod from breaking teleporters.

Because the quality upgrade also effects the teleport buffer, I'm inclined to leave it in place, so that it can level up. It just requires a mild adjustment to my strategy.