Yeah it uses the same material but we don't know what happened in the web build just has shader errors with those objects in the editor works but in the build just has the pink shader errors, but i think is fixable.
About the keys well... the fact is that the only programed keys are those the E for pick up and the time shift, this game is developed by my classmates and me and having to controll what does 11 pepole i a 48h jam is difficult and some keys in the controll section fo the web should not exist haha...
Anyway thank you very mucho for your feedback :D