Yes, I have also face this issue.
Me too. Mine have gone too - none of my gigs now have a favourite >0.
Though there are still some seller’s gigs that have favourites so they’re not gone from every gig on the site.
It seems like the favourites on my gigs are back now but they still seem to be missing on other people’s gigs (eg. gigs with hundreds of reviews have zero favourites) - maybe they’re updating/fixing the count for everyone’s gigs?
Mine is back again, thank y’all for the responses to confirm that I wasn’t alone