Help with climbing ledges

I’ve been following crocopede’s tutorial on youtube for climbing up ledges, and so far it’s been working but I can’t get my character to move up over the ledge to the top of the block. I’m using a sidescroller template instead of the third person one, but I haven’t run into any weird problems so far so I’m not sure if that’s the reason or if I just missed something… it basically looks like the character keeps snapping back to its original position before it started climbing and I’n not sure why.
Here’s a video:

Thanks for any help!!