Some source files not importing
My textbook for FCP X is a new edition from Peachpit Press for 10.3.
There are supposed to be 28 files in my Library for the exercises contained in the book. There are 25. I can see they were imported into the location in my Documents folder, but they're not being picked up by FCP X, and I can't figure why they aren't. TIA.
iMac, macOS Sierra (10.12.3)