Red glitch/error in entire Unreal Scene?

Hi all,

I’m creating my first official unreal environment and came across an issue where my lighting and skybox are red with weird stripes.

I’m not sure what caused that. I opened the project earlier today and here’s what I saw. When I try to rebuild lighting, the program crashes with the below error. I’m not sure if it’s a GPU error, but my drivers are all up to date.

Please let me know your thoughts.

Thanks in advance!