Creating this "Feature Request" on behalf of Frontline Consultancy.
Some customers has experience an issue where they are no longer able to sign into Lifesize Cloud using AzureAD after months of having no issues. The recent customer reached out to Microsoft. Microsoft response in an article is that " All applications that use Azure AD should be able to programmatically handle the key rollover process or establish a periodic manual rollover process."
Documentation can be found here: Signing Key Rollover in Azure AD | Microsoft Docs
Currently at this time, Lifesize does not support automatic Signing Key Rollover. It would be helpful if the Signing Key would rollover automatically and not require manual updating by the User.