02-19-2019 06:45 AM
Hello @bluesurf2622. The .LRV files are Low Resolution Video files and are created automatically in the camera. Try re-flashing the firmware of the HERO5 Session that does not create LRV files at this time, even if it has the latest firmware already. The steps under Manual Update here will guide you through the process. Let us know how it goes.
02-27-2019 01:09 PM
It is odd, indeed. Try using the same SD card from the other camera and see if .LRV files will be created. If not, let our Support team help with further troubleshooting. You may reach them by phone or chat through https://gopro.com/help/ContactUs . When you do, please have your camera and camera information ready. You may also refer Support to this thread so they can see the images you posted. Let us know how it works out. Thanks!