This is happening using Windows 10 as a remote after logging off or rebooting.
Settings/Services indicates Tidal is disconnected. When trying to connect the link forwards you to a web browser for the Tidal logon page, once you enter you UN/PW a popup will ask if you want to open Roon.
Welcome to the Community! Does this happen when the Core or Remote is rebooted or does it only occur when the Core is rebooted? Could you please provide some more info regarding your setup using this link as a guide?