Hello, based upon the wording in Jiraiya Toad Chant's mystery, it is intentional that any character able to create or destroy barriers is unable to use their mystery's while the barrier is active, even if that barrier is not from the mystery itself. However, we have already brought up that this still blocks Minato Edo Tensei's mystery if he does not have the bond skill active for his barrier. I will ask about this again.