I had a very strange thing happen with my Z7ii and I thought I would post it here to see if anyone had some idea or thoughts on what might of happened. I normally shoot RAW plus JPEG, with the 2nd card slot as a backup, and import both RAW and JPEG into Lightroom. Yesterday I shot 58 photos at a family event. That night I put the XQD card in the card reader and imported to Lightroom. In Lightroom I noticed that there were 10 files that were JPEG only and without the corresponding RAW files. I then looked at the XQD car directly on my computer and sure enough there were 10 JPEG files without the corresponding RAW files. I then put the backup SD card in the card reader and looked at it. On this card both the 10 JPEG files as well as the RAW file were missing. These 10 photos were taken in the middle of the shoot, there are photos before and after that do not have any problem. Fortunately, this was not a paid shoot and the JPEG's are somewhat usable. But I really cannot think of why this would happen and of course I am concerned it will happen again. I did some test shots today and there was no problem. Anyone have any thoughts? Thanks!