ZBrushCentral

My model is black

While using one of the knife brushes Zbrush crashed. When I reopened my project my model was black except for when it’s in front of the image I was working from. I did not accidentally hit the V key before the crash and can’t figure out why it’s black unless it’s in from of the projected image. I’ve tried to correct this and figure it’s simple, that is once I find what’ll fix it.