Get-ADGroupMember -identity "GroupName" returns 39 members of the group and then fail with "Exception getting "PSShowComputerName": "The adapter cannot get the value of property "PSShowComputerName"."

Hi

I have tryed the command: Get-ADGroupMember -identity "GroupName" the group contain 95 members however when I run the command it returns 39 members and then fail with:

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format-default : Exception getting "PSShowComputerName": "The adapter cannot ge
t the value of property "PSShowComputerName"."
    + CategoryInfo          : NotSpecified: (:) [format-default], GetValueInvo
   cationException
    + FullyQualifiedErrorId : CatchFromBaseAdapterGetValue,Microsoft.PowerShel
   l.Commands.FormatDefaultCommand

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1) How can I fix this?

2) could the group or one of the users in the grup be corrupt?

in advance thanks for your help. :-)

regards

Ruben