Separating Watched Status for Different Users

Hi

I have the standalone paid app (version 6.1.8 on TVOS13). It is set up in two bedrooms, with an Apple TV 4K in each room. One Apple TV is setup using my Apple ID. The other one is set up with the kids’ Apple ID and family sharing. Both sync to iCloud (one to my icloud storage and one to the kids’ icloud storage). Both Infuse apps link to a common server running plex.

This works well, except for one thing. They seem to share “watched status” and “currently watching”. I would like the two setups to update watched status completely separately, but I cannot seem to make it happen. I am assuming the both infuse apps are getting the watched status from plex.

Is there any way (other than not using plex) to get them to update separately?

Cheers
Paul