You do not need to tag the Model as both a Co-Performer and Collaborator when uploading your video. However, it’s important to remember that only Collaborators will be tagged in the Models section on the video player.
So, if you have a Collaborator who was previously added as a Co-Performer, make sure to prioritize choosing the Collaborator with the blue check!
Note: It’s easy to spot if you are tagging a Collaborator due to the blue verified checkmark that will appear next to their name. Co-Performers will not have that blue check.