I was using blender when I accidentally switched to cycles instead of eevee, and the program crashed. After restarting blender and seeing that the engine already switched back to eevee, I noticed that the mesh that I imported from an .svg, which has been extruded, appears as white/translucent, light passes through. I tried messing with the materials but nothing worked, everything seems normal and not out of the ordinary. I don't know what to do, i want to go back to how it was before the crash (object appeared black and blocked the light from behind), I'm a beginner btw Oh and all of this problems are present in the viewport only, when I render, it seems to be correct, but I can't work on stuff that I can't see until when it's done. Help please, it's urgent Thank you