Hello,
Sorry for the delayed response but after moving I only had limited access to internet until recently ( why does it take over a month to install internet in London anyway? It’s so backwards.). Ladders were a feature I wanted to add on launch but did not have enough time and since them I kept putting them off. Now I am working on a pretty major update that will include a new enemy movement system and ladders are also planned to be added if i can squeeze them in. Regarding the wall jump, I have not had any issues with it. Are you sure the player is colliding with the actual wall since the actions are based on the player touching that wall.