Broken zoom tube entry in ERZ2
There's a zoom tube that doesn't work if you happen to have wrong position alignment in high speed, letting you through without taking it. The bug is quite infamous among speedrunners for sabotaging runs and I should've reported it ages ago, but better late than never!
The GIF was recorded in v2.2.9, but it's also present in v2.2.10 prerelease 2.
Edit: More info and better wording.