As the title says, now that travel powers are actually useful one thing pains me, which is the altitude at which some heroes (if not all idk) fly, they keep getting blocked by low gates or doorways so a person has to cancel flight pass that gate and fly again.
Edit: Another suggestion was made to remove collision particles from doorways and gates, also some players believe that flying heroes should just lower their altitude accordingly to fit through those gates, which would make it more visually appealing.