Migrating Animation Sequences from one project to another

Hi guys,
Can anyone help me transfer animation sequences from one project to another?

I’m attempting to migrate the animation sequences and the animation blueprint from the official Action RPG Project into another, custom project (based on the 3rd Person Prefab). However, some of the skeletons that I exported do not get imported at all or are completely empty.

I’m aware that I’m gonna have to relink a lot of stuff among the Animation BP and the Player Character and Player Controller. Any tipps for being efficient here?

Please let me know if I forgot to provide any important information.
Thank you!