I have this weird thing going on with my tenant. I have successfully executed this PowerShell command on other tenants to retrieve Site collection administrators for user one drive for business. However, one particular tenant, I cannot get any return when executing the same command.
working
Get-SPOUser -Site https://sitename-my.sharepoint.com/personal/testuser1_testuser1_onmicrosoft_com | where {$_.IsSiteAdmin}
not working
Get-SPOUser -Site https://myplace.mss.com/personal/testuser1_mss_com | where {$_.IsSiteAdmin}
Is it the way the URL is named for mysite????