Trying to log in, just updated still says the client isn't up to date

Anyone can help with this?

Make sure you are running the launcher with admin privileges.

Anyone can help with this?

Just a few dumb suggestions,
• Uninstall the client and retry. You might have failed or interrupted patches causing issues.
• Only download the client from the official website https://realmserver.com/
• As Asigo has said, try running the launcher as admin. I have never had to do this but it couldn't hurt to try.