Issue with Epic Game launcher

Epic Game Launcher was working perfectly on Windows 10.
Tried to install TwinMotion, somehow killed the Epic Games Launcher and complain about Graphic Card not being compatible anymore.

Uninstalled everything and reinstall Epic Game launcher via Epic Installer 9.13

Epic Games Launcher starts and logs me in properly, the menus are there but no pictures and limited interaction possible.

Not sure what to do.