Ghost Designers in Perspective Sessions

So, we have some Unauthenticated designers showing up in the "Perspective sessions." These are not shown in the "Designers." We are actually suspecting these "ghosts" of possibly running scripts. Anyone have any tips on how these get created and/or how to kill them minus a gateway restart? Guessing they get created when a designer loses connection but does recover it in some scenario potentially??
I also got a list of what PCs are listed as unauthenticated designers based on IP. None of them should really ever have had a designer open...

So to update, we did now run this script from a transform and delete the ones that weren't showing in the 'Designers' section. It did get rid of them! Still diagnosing if they were running scripts.
Screenshot 2023-11-14 151712