Try updating to the latest RX 570 driver : Radeon™ Software Adrenalin Edition 18.9.3 Release Notes | AMD .
If this only occurs with this one particular game, it could just be a bug in the game itself. But if it occurs all the time, whether in a game or not, then it may be something else.
I'm still having issues and this also covers the multiplayer section of the game help please... Anyone else having this card with this problem ??? This is unbelievable.
Rx 570 4gb gigabyte gaming edition
Asus b85m-e/csm board
PSU EVGA 500 watts 80+white plus
8gb ram DDR3 1600 dual channel
I5 4590 3.3ghz.