BC15 to BC16 update error

yugi200186

Hi,

I got error notification below when upgrading from BC15 to BC16.


Your Business Central environment failed to update

Your Business Central environment could not be updated to version 16.0.11240.11946 because one or more of the installed extensions failed to update successfully. Review the error information below and complete the recommended actions to resolve the issue before the update can be attempted again.

Your service identifier (Tenant): XXX-Sandbox_BC16
Environment: Sandbox_BC16
Version before update: 15.4.41023.41345
Version after update: 16.0.11240.11946
Scheduled date: 4/23/2020 (UTC)
Errors:
NST Tenant State: OperationalDataUpgradePending
NST Tenant Detailed State:
Message:
Extension 'Italian language (Switzerland)' version 16.0.11240.11946 by 'Microsoft' failed to synchronize the database schema.
ForceHandleTrackingEvent failed to acquire a lock

Extension 'Norwegian language (Norway)' version 16.0.11240.11946 by 'Microsoft' failed to synchronize the database schema.
ForceHandleTrackingEvent failed to acquire a lock

There's no language extension for Italian and Norwegian installed, no installed 3rd party extension for this environment.

Any idea what's going on ?