I’ve not seen this behaviour personally, but I think you’re focusing on the wrong issue with the ride-ons - the issue surely is that she was showing as riding with a pace partner while in Richmond, where there are no pace partners (unless that’s changed very recently and this is part of the long-promised “you’ll see pace partners in events”)
I actually wonder if this is related somehow to Wrong route titles appearing in rides and that there is some weirdness going on where several routes have the same “identity” somehow across worlds or Zwift is assigning riders to one world visually but another in some other system?