SQL Server 2017 edition downgrade warning

Hello,

I have a SQL Server Evaluation version installed for which the evaluation period has expired.

I downloaded the ISO from the Open Licence account (with a SQL Server 2017 Standard Licence)

When installing,

-> Maintenance

-> Edition Upgrade

-> (the product key is filed), next

-> accept license terms, next

-> I specify the only instance (Edition: Evaluation, Version: 14.0.2027.2

The rule check in Progress stop at about 80%

-> Show Details:

SQL Server 2017 edition upgrade: Passed

SQL Server 2017 edition downgrade: Warning

Upgrade architecture mismatch: Passed

Always On Availability Groups feature check (no status listed)

The warning details are:

Rule "SQL Server 2017 edition downgrade" generated a warning.

The selected edition downgrade path is not valid. The source Evaluation edition and the target Standard edition is not a supported path.

according to:

https://docs.microsoft.com/en-us/sql/database-engine/install-windows/supported-version-and-edition-upgrades-2017?view=sql-server-2017

SQL Server 2017 (14.x) Evaluation Enterprise** to SQL Server 2017 (14.x) Standard is supported, (there is no cluster)

Is my problem due to the licence expiration, and how to I solve that ?