This can occur on computers running 10.8 (Mountain Lion). Some file names are too long to display in Final Draft, so the files need to be renamed with shorter names.
To do this:
IMPORTANT: Live technical support (phone, chat, email) for Final Draft 8 will end on December 31, 2017. You will still be able to find information and solutions in this knowledge base, in the online troubleshooter and in the FD8 User Guide.