I need help:(

It doesn’t affect the game at all butaesthetically I don’t like the way it looks. Restart your phone and it’s still the same. It also happens to Pokémon go in the circles
of pokestops

!

Sounds to me it is a problem with your device rather than the apps. If it is really bothering you, I would recommend a software update, or wiping your phone to factory and than restoring it(IF YOU DO THIS MAKE SURE YOU BACK UP EVERYTHING). If those two things don’t work, it is a hardware problem but since it only happens to certain objects it sounds more like a software problem to me.