Teamviewer 15 forgets Login in VMWare Horizon

We are (trying to) use Teamviewer (current Version 15.60.3) within VMWare / Omnissa Horizon Instant Clones (stateless VDI) with FSLOGIX Profiles.

Teamviewer does not rember the Account login between Sessions and needs to be re-logged in after EVERY Login into the VDI which is very annoying.

We have tried several solutions provided here (Registry Settingh for AllowedConnectionProtocols) bvut nothing helps up to now.

Does anyone have an Idea or Solution for this Environment ?

Would be really greatly apreciated.

Thankx a lot.