Firstly I didn't lean against the wall but if it's a wall glitch ok then I will take this as a warning. If it is a rule-breaking I didn't know.
Secondly I have tested and the area you have been is small.
https://youtu.be/59Q-jzhYlis I don't know whether it is rule breaking. Your place was so small. Recorded for testing.
Third : How could you shoot me from place I shooted? According to picture, the bullet cannot pass there however you could shoot me easily and I got a headshot. Admins should find a solution for this asap.