Box sweeping gives a completely wrong normal

Also the fact that OutTime gets less than or equal to 0 feels strange. Shouldn’t it have the other value than 0 because it should have collided against the BSP?

I’m sorry that I didn’t included the scene which the final result of OutTime in the video, but you can check it by setting a breakpoint at https://github.com/EpicGames/UnrealEngine/blob/5.4.2-release/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/GJK.h#L1725