Not sure what triggers this, but the mirror relic doesn't work in the very first level. Evil ends up spawning when entering the mirrored zone but doesn't move and just stares into my soul. Not doing anything in particular just walking up to the pedestal and placing the mirror seems to not work. Further interaction with the pedestal, resetting the level, and restarting or reinstalling the game don't appear to fix it.
Game looks really fun. The art is great too.