New Postgres source. Error Copying app. Could not authenticate user

[bien]

I just created a Postgres instance from Google cloud SQL. Added the AppSheets IP address, tested and authorized the connection successfully.

However when i select that source to copy an app i get this error:
Could not authenticate user with ID…

Has anyone of you encountered this?

[bien]

Fixed!. Been playing around with the source. Turns out the solution was to not to share the database with team or Hide it if you already did. It can be seen from the sources tab on my account