It did not, Alek.  And I assume a software update must have fixed the problem. ... View more

Indeed, it scared me at first but then realized that the metadata is not lost.  You can still see it if, for example, you sync metadata between two files.  It's all still there.  You can also see the data in Finder.  I would think the data just isn't loading in a way that it shows in LR's metadata panel on the right.  And I also assume they will issue a fix soon. ... View more