There can be 2 reasons for that:
- The first one can be that the folder containing the files has a name with a special character, like S3d files 6'0" and more. If you remove the characters ", ', / or . then you'll get your files back.
- The second reason could be that you didn't gave all the authorizations in the "Privacy & Security"/"Files and Folders":
Shape3d X must have access to all your folders:
If you're experiencing repeated crashes of Shape3d you should also look at the "App Management" parameters and allow Shape3d X to update or delete other applications:
For any other problem with the installation of Shape3d X on your Mac check the FAQ: www.shape3d.com/FAQ.aspx