Set-MgUserLicense error about missing addLicenses parameter

[ACarlock]

I have version 2.61.1 installed. When I run Set-MgUserLicense -UserId "[email protected]" -AddLicenses @{} -RemoveLicenses @("639dec3b-bb19-4c8b-871c-c5c44154b0cb"), I receive an error:
Set-MgUserLicense : One or more parameters of the operation 'assignLicense' are missing from the request payload. The missing parameters are: addLicenses.

I'm using PowerShell 5, but have tried it in PowerShell 7. I've tried uninstalling and reinstalling MGGraph, and downgrading. All with the same results.

Recently I ran a script that installed MGGraph beta, that messed up something else, so I uninstalled that, and still MGGraph wasn't working, so I had to run some manual steps to delete folders to get MGGraph to uninstall and finally install the latest version. I feel like something may still be remaining from the beta install.

Thoughts.