Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11Util.cpp] [Line: 198] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0020 - 'INTERNAL_ERROR')

I dont know why this problem is occuring to me, it is happening since last 2 hours. I reinstalled my graphic drivers but still the problem is occurring. I ran a game too, to see if it’s a graphic driver problem, but the game ran perfectly. I dont know what to do? Please help

Are you on a laptop with a dedicated video card by any chance?