For some reason, despite defining the UV map, and despite the UV map clearly showing up in in its entirety with the Viewport Shading option, the render itself doesn’t show everything. Here’s a screenshot. I tried to get it to show everything that should be necessary to demonstrate, diagnose and solve the problem. If you need any more info let me know. Thanks.
Insufficient info supplied. Your screenshot is missing the important bits of info
Attach or post a link to your blend file
check if all normals are outward !