Hello @tolacipeetahi ,
I’m not very familiar with animations, but I’ve been doing some research and found several posts describing a very similar issue. In many cases, they mention that the Cast fails because the reference is not yet valid when Update Animation is executed.
Some of the suggested solutions are:
Adding an Is Valid node at the beginning, before trying to use or cast the Pawn.
Using Get Owning Actor instead of Try Get Pawn Owner, as mentioned in one of the posts, since in some cases the AnimBP doesn’t have a valid Pawn at that moment.