In general, DO NOT USE the regular update. Instead press the windows key and type "2019 Lacerte Web Setup". That will do a much cleaner update.
If you run into the type of problem you are describing, try the FORCE method - https://proconnect.intuit.com/community/help-articles/help/how-to-perform-a-force-install-of-lacerte...
Thank you. When I finally got help this is what they told me also. But that of course just goes to prove my point. The program, the customer service, the support system is terrible. They are not entering corporate extension payments as a memo in the estimated tax screen for some reason.