Data loss after iOS 14 release

Since the release os iOS 14 my facebook conversion campaigns has been suffering from partial/total data loss.

When i breakdown the campaign data i can see these "Uncategorized" data results:



Apparently this is fucking up my adsets optimization, because the conversions rate are trash since last week.

Has anyone came across this problem aswell?

hmm.. looks like they removed the Age & Gender classifier but I don't see how that should affect your conversion optimization