[Solved] Why does the ProtectedFromAccidentalDeletion property on the Get-ADGroup command in the PS AD module return a NullReferenceException on one machine?
This is a bug in PowerShell 6. The resolution is to upgrade to PowerShell 7, where it was fixed. Reference GitHub issue where the issue was first reported & marked fixed: SteveL-MSFT commented on Aug 23, 2019: This is fixed in PS7 Preview3 (See also https://github.com/PowerShell/PowerShellModuleCoverage/issues/8) solved Why does the ProtectedFromAccidentalDeletion property on the Get-ADGroup … Read more