Hi guys, i found something, it’s not a solution but this worked for me; i had the same problem when i migrated the motion matching assets to my proyect and move them to another folder, doing that i had to create the chooser assets again because those assets broke when i move them; so maybe that was my problem, because when i used the motion matching ABP in my character it worked perfectly in the editor but when i packaged the game i had the same error posted here; so i had to migrate the asset again but without moving the assets to another folder, and using the assets like that and that works for me. Hope this helps you =)