Texture bug in model preview on sketchfab

Hello, here is a problem that I have for 2 days, I can’t solve it, my textures in the sketchfab preview are completely black, yet I’ve never had this problem and I have no problem on my textures. I tried removing the animation but that didn’t change anything. Thanks in advance

Hi Max. It looks like the thumbnail generator is struggling to generate a 360 preview because of the amount of complexity that you model has. A possible way around this is to reduce the quantity of textures and geometries.