I’m sorry you both are having your trials wasted by an update issue.
Re-installing Masterpiece Studio can resolve the issue, I believe.
If that doesn’t work, we can take a closer look at what might be going wrong by email. You could send you log file to firstname.lastname@example.org. Your log file is located at “C:\Users<user name>\AppData\Roaming\Masterpiece Studio\log.log”.
It’s also worth noting that the update is quite large, and it can take take some time to update.