Error loading scenery with latest SDK

Trying to convert my scenery to the XBOX sdk but Im finding all my custom
materials corrupted with a message saying “unable to find diffuse texture”

I have tried to manually
reassign the diffuse texture but no luck the same error shows

Hello. We would need a bit more info about your issue. - Where is this error
message displayed? In the console? - Your diffuse texture seems to be used on
your screenshot. Is this an error that is displayed but has no impact on the
way your package works? - Ideally, can you provide a link to your package
sources in a private comment so we can investigate the issue? Regards, Sylvain