If you see, you have many error refering to the same issue, the filename it too long. So you must rename them, remember the max is 259.
- After rename update the redirectors.
- Alwas clean before cook again.
The last time I trying to build my game, I was caught by this issue.
Also, are you sure your animations, like FP_Run_Fwd, FP_Idle, ect. has a valid Skeleton Mesh?