Where have I seen that double-cork before? I keep thinking of Race4Kicks, and I wouldn't put it past Cas to also come up with something so evil ;D
It might have been me, in a track raced many moons ago (http://zak.stunts.hu/tracks/ZCT106)... It can be tricky to make those double corks fit into a design, so I don't to slip them in very often.
Was I able to pass through the first (descending) cork wall, only to crash into the second (theoretically nonexistent) ascending one?
I'd say that looks like a normal crash into the wall of the first cork. (There are extra existing parts of the other cork, just not at that particular spot.)