Hi @John Steele,
This did not happen prior to the last server update.
Could you please rollback the CU update to the older one to check if the issue is the effect of recent changes in SQL Server 2022 in your test environment.
Also, there is a workaround to get exclusive access to restore SQL Server database.
If these all do not work, open a support ticket to report the behavior and seek a fix or workaround from Microsoft Team for the issue is affecting your Prod Environment.
https://support.microsoft.com/en-us/assistedsupportproducts
Regards,
Zoe Hui
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