Its a big movie of photos. I get an error half way through. "There are missing or unusable files in your project, check file preparation enabled in options or remove & try again error Ox887A005".

I have removed some photos that had an error messiages , & have tried to run this several more times with same message. Every other photo looks fine. I am running Windows 8.2. The options message I get, have tried unclicking "Prepare files for fasting editing". And also Prepare files for faster stability". It does not give you any other options to try.