How to disable movable actor disappear?

Hello,
How to change or disable movable actor disappear? This is very annoyng especially in dogfight game. I can only see other player pawn when it’s close my pawn. Line trace can’t detect player that is not visible.
Also is there any way to reduce effect that plane in high distance is smal pixel line?

Are you doing this to scale? That might help.

Also, do you have anti aliasing turned on?

Thanks! This was what I was looking for

Also changing replication distance helped