Anybody ever lost trails on their Lowrance?

Last time I went out fishing, my Lowrance unit just went into demo mode by itself. I turned it off and back on and all of my trails were gone. Anybody ever have this problem? I went through the menu and don’t see anything that jumps out to me to restore. The only thing I saw was to load trails from a memory card and they weren’t saved on my memory card. I had about a years worth of tracks, so it sucks they are all gone.

Any help is greatly appreciated.