Shared CC Library duplicates multiple instances of Adobe Stock not licensed photo

This month I gave 2 training sessions on the usage of CC Libraries (one dedicated to Illustrator news, one to CC News)

I had a few trainees that I would share a CC lib with, they all get edit rights to populate the lib, they are all in front of me and their CC lib panel is open.

Once I showed them how to look for an Adobe Stock image directly from their app (whether Ai, Id or Ps), the downloaded picture would duplicate and appear in multiple instances (one for each attendee).

It, of course, gets scary on a larger attendees group, but I don't think I have a screen grab of that.

And it is complicate for me, as a freelancer, to replicate this situation out of the training sessions. Once done, I still can delete the incriminated images, although, different issue, they don't dsplay any thumbnail in the "recently deleted" part of CC assets.

I will also log it as a bug in the stock forum.