Facebook doesn't display all followers of (personal) profile

Hello, before some time I deleted all my non-friend followers by adding them to block list (it can't be done only by disabling follow feature). I'm pretty sure that I reduced number of my followers to zero and then disable following feature in profile setting.

Now my profile started to show that 6 people follow me, but there was noone displayed in https://www.facebook.com/mrkvlk/followers I enabled follow feature again and only 1 person appeared. So I deleted it. But there are still 5 people that don't appear even to me as owner of profile.

There's definitely some privacy bug of Facebook or bad calculation of followers count. Could someone approve it?

Asked about 2 months ago