Process Analyst can't search tags because Ctapi connection is offline

Hello.

I'm using AVEVA Plant SCADA 2023 update 9 running as a service with a client in the same computer.

When try to search for a tag in Process analyst I get the message "Process Analyst Control" "The search failed with the following error: The Ctapi connection is offline."

The same happens always and with any king of tags: trend, alarm, variables and local.

In the update document I just found something in update 2 about the need to upgrade all pages n graphics builder, that I did, without better result.

Any hint?

Thank you.

Nuno Ventura