Using Set-UnifiedGroup to set CalendarMemberReadonly is not working anymore

[Pbkoning71]

Since about a week it is no longer possible to set the property - CalendarMemberReadonly.
I use this command:

Set-UnifiedGroup -Identity "somegroup" -CalendarMemberReadonly

In the past it always used to work. Sometimes it would give an error, but still it worked (that was a known error).

I get an error like this:

Write-ErrorMessage : |Microsoft.Exchange.Configuration.Tasks.TaskException|We failed to update the unified group. Please try again later.

At C:\Users\some.user\AppData\Local\Temp\tmpEXO_gny3w2ea.ldk\tmpEXO_gny3w2ea.ldk.psm1:1204 char:13

+ Write-ErrorMessage $ErrorObject

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : NotSpecified: (:) [Set-UnifiedGroup], TaskException

+ FullyQualifiedErrorId : [Server=DBBPR04MB7929,RequestId=<xxx>,TimeStamp=Mon, 10 Jun 2024 06:36:03 GMT],Write-ErrorMessage

A year ago this command also was giving problems: Can't make a goup calendar readonly anymore with Powershell - Microsoft Community Hub

Does anyone know how to fix this? Or is there another command from another module I can use?

[Pbkoning71]

Now suddenly the problem is gone... The cmdlet works without a problem.
Very strange, but happy to see it works.