About ExternalActors folder

Assets in the ExternalActors folder
Fortnite Creator’s Code of Conduct.
The warning has been received.

However, the names of the assets in ExternalActors are different from the actual names of the assets.
The offending assets cannot be identified.

How can I determine which file contains the assets in ExternalActors, or how can I resolve the above issue?
Please let me know if there is a way to identify which file is the asset in ExternalActors or if there is a way to resolve the above issue.