Tbh, I don't think you should be too concerned with your ranking dropping 40 places. It might mean that others just worked very very very on their engagement to get ahead of you. How much did your UA score change, that's the main thing.

Sometimes, I think people are starting to get too obsessed with how much upvote they're getting and the returns on their delegation. Don't get me wrong, I look at my payout and its getting to a very low point but I just have to condition my mentality to not be too bothered about it. Part of the low payout is due to the low Steem price and there's nothing I can do about that. And part of that is because I'm not getting much new upvoters. The latter is a two way thing, because I haven't been engaging much recently. That I can control.

In a way, Steem UA is a good thing because one of the drivers is engagement, so it all goes round.

I better go an check how much they've upvoted me now........