I have noticed on one of my computers that with certain projects I created and imported images off a finger drive that the images show up but none of them have masters available even though they are "labeled" as .CR2 that is RAW files. That is not true for other projects.
the images show up and I can open as full screen but I cannot do any adjustments or export the images as either Masters or Versions...
Did I do something wrong during import???
Do you still have the images on that finger drive? If so, you can plug it in and relocate masters to anywhere you want. If you consolidate masters it will put them in the library.
If the images are no longer on the finger drive you are out of luck.