Uninstalled through deactivating them by mod manager or fully remove them?
There's several mods related to magic mirror and character apparence that will make it stop working (or better said make just what you describe) after update just for being present in the mod folder or overridden games file even when they are deactivated.
If that the case your options are:
-Live without magic mirror until all the mod are update
-Fully unsintall apparence and CC mods until they are update
-The one that i personally recommended, revert to previous patch until all your mods are update. Basically if your are making a modded playthrough you should refrain from update the game before the mods
