I noticed last night that all but a few of my Red labels had disappeared..
Went to sort some stuff and only a few left..from 4 or 5 hundred..very disheartening.
I haven't upgraded anything..all systems the same etc, grr, infuriating.
Im in Lightroom 5 on Mac in Mavericks.
Wondering if anyone has experienced this and solved it without going back through and re-editing/looking at thousands of images..