Kadence/Liquid Web migration has left 20+ client sites without backups for nearly a month — anyone else?

Since the May 12 Liquid Web migration I have had zero working backups across all of my client sites. Licenses show as Active in the new portal, all plugins updated, but Solid Central/Kadence Central will not reconnect to any site. Multiple support tickets ignored. Has anyone actually gotten their sites reconnected after this migration? Looking for solutions but also want people to know this is a serious ongoing issue.