Roon --> Tidal Login does not work

Since starting of today I cannot login to Tidal.
The call from the Roon App to the Tidal Login page works, entering credentials works, the message box “open Roon” comes up which I accept - but then back in Roon the Login fails.

Can anyone help?

That is terrible when this high-tech stuff doesn’t work. Have you tried logging out of Tidal through Roon, then rebooting the Roon Core and logging back into Tidal through Roon? This has worked for me using both Tidal and Qobuz, although, Tidal seems to give me the most trouble.

qobuz.