That's because you don't have the permission to list the contents of the folder,...

jve · on April 13, 2022

True.

  Get-Acl C:\Windows\TEMP | select -ExpandProperty 
 AccessToString
  CREATOR OWNER Allow  268435456
  NT AUTHORITY\SYSTEM Allow  ReadData, Synchronize
  NT AUTHORITY\SYSTEM Allow  268435456
  NT AUTHORITY\SYSTEM Allow  FullControl
  BUILTIN\Administrators Allow  268435456
  BUILTIN\Administrators Allow  FullControl
  BUILTIN\Users Allow  CreateFiles, AppendData, ExecuteFile, Synchronize
  BUILTIN\IIS_IUSRS Allow  ReadData, Synchronize