Have had logbook pro for years and have had on and off issues with the unlock codes and authenticating. Now I am having troubles with their certificate producing an error on sign in. Any body else having an issue after upgrading to 12.6.1?

No issues here, you might want to contact the help desk.

After the update my Route Browser add-on was asking me to put in my activation or registration code or whatever. I did not put the info in, and next time I opened it, it worked normally.