Uv of 3D model preview not working properly

Summary

I was uploading my robot, tried 3d preview and found that UV isn’t reading correctly I checked blend file and it only had one UV map and it was working good but my model is multiple objects not one they have all the same UV

What type of bug are you experiencing?

Publishing

URL where the bug was encountered

Steps to Reproduce

just uploaded everything normally found that it wasn’t reading material so I uploaded it myself then what happened in the picture

Expected Result

that the 3d preview works fine

Observed Result

it didn’t

Platform

Brave

Operating System

Windows

Upload an image

Hi, There it has happened to me once , and you first upload to sketchfab and see it worked or not and then , redownload the zip file from sketchfab and then uploaded to fab, another way is to upload latest blender version in zip file to fab directly . i recommand sketchfab (fab) approach.