UPDATE
Loading “studio driver” for Nvidia fixed my problem and after few updates of the driver I was able to run unreal engine with no issues on “Game Ready driver” with both 4.25 and 4.26 versions. I suggest update your graphics drivers and try using 4.25/4.26.
you can track the issue with this link. https://issues.unrealengine.com/issue/UE-92814
Hope this helps.