This bug, BUG-000153695, https://support.esri.com/en-us/bug/unable-to-log-in-to-arcgis-for-teams-with-arcgis-enterp-bug-00015..., is causing some headaches.
It's status is "In Product Plan." Does anyone have an idea as to when or if it might be fixed? It seems like an epic showstopper.
Thanks!