Under some very particular circumstances, the TB doesn't handle collisions properly.
I believe reproducing requires the following:
- TB projectile must be out a bit past its shatter time
- (note there is a window after the projectile shatters where you can still teleport)
- TB projectile must not(?) collide with the target surface.
- (you cannot teleport after the projectile shatters if it shattered due to contact with a surface)
I'm unsure how surface thickness affects this. I've gotten clipped through/into a couple different magnet surfaces, but have yet to test other barriers.