Hi!
I don't know if this is a bug or if it's possible to fix it.
When the player is coming to the wall, it
will be able to just walk straight upwards
the wall. It's more like a steep slope.
Take a look at the video, so you can see what I mean.
I can fix this to set the player friction to 0.1 or
something, but then the player will be stuck
in the wall when he is flying.
This is a problem with Rigidbody 2D.
Rigidbody 3D is not a problem.