Dorico 3 can't save imported Dorico 2 project


I’ve just imported a template file created in Dorico 2. After importing and a message telling me, that the pentaluma font is not installed (how come?) it opens as it should. But now, I get an error message if I’m trying to save my project. And if I try the ‘save as’ command, there is simply no response.

Welcome to the forum, Liauw. What is the error message you get when you try to save your project? Can you zip up and attach the project here?