LowLevelTasks::FTask::Init<FTaskGraphCompatibilityImplementation::QueueTask'::5'::<lambda_1> >'::5'::<lambda_1>::operator()() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Async\Fundamental\Task.h:501]LowLevelTasks::FTask::Init<FTaskGraphCompatibilityImplementation::QueueTask'::5'::<lambda_1> >'::5'::<lambda_1>,0>::CallAndMove() [C:\BuildAgent\work\b731a33f2a691e17\UE4\Engine\Source\Runtime\Core\Public\Async\Fundamental\TaskDelegate.h:171]"Shader compilation failures are Fatal." is a bug in 1.0 unrelated to mods and can be fixed by adding or removing the -dx11 launch argument from your game. For more info see >dx11