this is a copy of @sofiadis message on another thread in order to open a new bug :
I'm also having the issue as @mrblah1
I haven't tried playing without ZC, but also never seen anyone having the bug on /r/agario.
So my guess - maybe its ZC but i can't be sure. It happens randomly a few times..
I've also seen other smaller blobs being "afk", but won't be eaten. And I'm not sure other players can see them
My blob never disappears from the screen, if its stuck in a corner, and i'll go to the other corner, i would see the whole map
Here's a video: https://www.youtube.com/watch?v=EOXjCWM9KlA