First vault symbol glitch in Wildlife Exploitation Preserve?

I'm in Playthrough 1 as Gaige the Mechromancer, if that matters. I'm jumping on the loading crane trying to ride it over the nearby building to get the first vault symbol, and have died five times in a row. I wait for the crane to lower, and as it starts rising, I let it clear the force field and jump on. When I try from the right side of the crane, i.e. I'm between the crane and the target building, I die almost immediately. I tried that a few times, with the same result each time.

So I switched to the opposite side, and thought I had finally made it because the crane rose and started to turn toward the building, but then the game froze for a second and I was re-spawning! This happened twice. After losing almost $20k on this, I thought I'd check to see what's up... has anyone else experienced this problem? Is this a bug in the latest game update?