I don’t think it’s completely stopped working. I rated a manga 5 stars a couple days ago and it showed up in favorites (then I changed it to 4 stars and it disappeared). That said, I noticed a while back that some books simply don’t show up in the favorites, but I was unable to figure out the reason or pattern behind it.
Personally, I’d rather Brandon focus on Manually specify favorite books and series than fix this bug.
