Nice work !!!Thank you very much for your hard work and generous sharing~
It works in 2019.4.0 unity. I try it at 2021.09.10.
One problem is that there is a certain error in the jumping logic. When the jump key is pressed, the character will force to jump up and lose its inertia.
I am trying to solve this and try to make jumping off the wall attachments more smooth and walk on the wall.