Can not create Database Diagram - Could not obtain information about Windows NT Group/User [duplicate]

Question

I'm using a Local MS SQL Database, the database was created automatically using entity framework. The database is created with out any errors.

However when I use Microsoft Managment studio to try and create a database diagram I get the following error:

Even when I login as the SA user I still get the same error, any ideas on why this is happening and how to fix this error.

Obstinacy

#25846336 – Quart

That link basically says to change the DB owner to sa. Fine. But why does sa need to be owner to create a diagram? In my case my machine is AzureAD Joined, but not Domain Joined (dsregcmd /status) – Titty

No, it says that you must be logged in in your domain. – Elliellicott

Answer 1

sql 2019 - Change the owner to sa enter image description here

Enhanced

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