Engine keeps crashing on starting Ue4 project after enabling gpu lightmass baking

Development Rendering
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1

I have a GTX 1080, and I followed the instructions in this video to enable the gpu lightmass option for baking lighting. How to Make Unreal Engine 4 Render Lighting Faster! - UE4 GPU Lightmass Tutorial - YouTube

The only problem is that it didn’t work, and my project I enabled it with won’t open! UE4 keeps crashing at 70% upon loading! Is my project ruined now or is there a way to save it?

2

Yes, I’ve also enabled this as showed in the mentioned video and I can’t open my project now. Please Help!