Google has indeed lost some of our data on Drive - affected personally

Had read recently about Google losing user data on GDrive here. Didn't figure up until recently if I'd lost something. Was just going through my old files and trying to recover data from old version of a sheet. Somehow, it's completely blank!

It's quite unfortunate because I do all my work on Google Suite, and don't ever even think about this. Wonder what else I've lost :/