Texture issues

I know this has been asked a million times on here but none of the troubleshooting has seemed to work. ANYWAYS i was importing my mesh and the texture didn’t show up and the shadows where like in an almost checkered pattern ???  it looks completly fine in blender, i checked stuff on blender and it looks fine plus its UV wrapped.  I just don’t understand what to do at this point?

Sorry this is kind of nooby i’ve only ever done recolors and edited rig slots before this is my first original mesh