Assertion failed: SUCCEEDED(Hr) [File:D:\BuildFarm\buildmachine_++Portal+Release-Live\Engine\Source\Developer\StandaloneRenderer\Private\Windows\D3D\SlateD3DShaders.cpp] [Line: 80] D3D11 Error Result 80070057
Duplicate of https://answers.unrealengine.com/questions/371820/launcher-error-when-launching.html
We will assist you as soon as possible on your first post. Please refrain from multiple posts for same problem. Thank you.