UDIM on RTX renders missing

I have a scene which renders fine locally and renders fine on Chaos Cloud with Vray CPU - but with Vray GPU (RTX) the UDIM texture I have on my scharacter renders missing, just renders as white default material.

Is there any setting or issue here, or is this a bug?

I have tried ‘Scene Textures’ as ‘Full Resolution’ and ‘Use System Memory for Textures’ (this is what I have it on locally) - I was concerned compressed might compromise the quality as its a hero asset and gets quite close to camera …? Not sure if this makes a difference anyway to cloud rendering.

Also wanted to add this renders fine in Vantage

Ideas? Help!

Thanks