Glitch on CW JQ

For some reason I died on the first pole on the second map. Before you say anything, YES the pole was clear before I crossed over. I followed the pole to the other platform, and yes, the top orb was clear of the platform. I jump on it, and the next thing I know, I hit a teleporter (i think), and I end up way below where I was, and moreover, dead by pole.


The green and red circles should give an idea of how far I fell.

I am sure I did not clip the pole, and I didn't fall by missing the platform, so why did I die?
(oh, and in case you are wondering why I'm over here, I just finished the Phantom Seed quest, and wanted to do something different before farming leps. ^_^)