A flying Vindicta was bumping into the roof inside a base, I used Traveler to get on top of her and knock her down but found myself clipped through. The fact that Mirage has another prominent bug involving clipping through a ceiling makes me think that it's something wrong with his model - I had actually used the tornado glitch to try and solve another glitch where some invisible trooper was stalling our troopers out on mid lane. I am certain that any hero at the correct height (up against the ceiling) with the correct timing on Traveler can trigger this glitch. Can provide video if anyone is interested