This is ritual humiliation time!
I know what I should do, and I ignored the sage words. Please profit from my misfortune!
If you use BaseCamp - BACKUP your data, and do it often.
I knew the risks of of not backing up information, and choose to ignore it! It won't happen to me, it can and it did!
Over Christmas I had a computer crash. I lost the main drive, where all the documents & settings were stored. All my main data was preserved, all the documents, photos etc safe! However the only thing that was a victim of my stupidity was my BaseCamp data.
For three years, I had carefully recorded, preserved all the trips, routes, tracks, waypoints, etc. With the crash all gone!
Please do not let it happen to you - it is so annoying! What makes it worse is it was totally avoidable, and totally my own fault!