Recently I saved several new waypoints on a scouting trip and took screenshots of the structure at these waypoints. In Simulator mode I was cleaning up some old waypoints and deleting them and renaming some of the new ones I’d found. During this process my 998 unit beeped several times then erased 4 of the screenshots for the 4 waypoints I had just renamed. It didn’t erase all the new screenshots I had saved, only 4 of them. There is a new 16 gig SD card in the unit, so I don’t think that’s the problem. Could there be an issue if I haven’t updated my 998 to the newest software version?