I will try to get it as simple as possible, but basically, my two biggest accounts (along with two others) got their levels on the "Most Hearted" list removed. This caused all the levels published after that to not appear in lists like Busiest, Most Hearted, Recent etc. I don't know what to do, who to turn myself to or how long this lasts for. I've also got no idea if other people have had this before.

Ask Steven on twitter, maybe he can help you.