So I bought a refurbished D7500 a few weeks ago. Had less than 25 actuations on it so I was very happy. Took a bunch of test shots with no problem. Yesterday I took it out for its first real use. Shot only in RAW. When I went to import and process the images today in LR I came across a problem. I could import the first 4 NEF files, but the last one only showed the top half of the photo and then the rest was black. The remaining images all failed to load. Tried several programs to open them. In PS it said it was not a proper NEF file and it could not be opened. The files seem to be the full size (25 MB).
My question is if this could be a problem with my camera or with the SD card? I put another SD card into the camera and was able to take a few shots and import them. Am worried this is something that may crop up randomly when using the camera and won't be able to get it fixed under warranty.