New Post: Get-SCSMObject not returning computers

I'm stumped. Hopefully someone can tell me what I'm doing wrong. I'm just trying to get a list of computers from SCSM. I'm querying classes and names that I know exist (I can see them from the SCSM console), and I'm getting no results back at all.

This is what I'm running:

$Class = Get-SCSMClass -Name Microsoft.Windows.Server.computer$
Get-SCSMObject -Class $Class -filter "PrincipalName -like servername"

This returns nothing at all, but again, I know the server name actually exists in SCSM.

I can also just do a Get-SCSMObject -Class $Class and get no results, either. I would think that this should return all items of the server class.

Thanks in advance for your help. This is driving me insane!