We support Xref, however, the best practice is merging it into your main scene.
Please merge them in using the Merge buttons found in the Environment And Effects dialog.
Start Rendering with Super Renders Farm:
Article in this section
Can't detect your render camera
The rendering results turn up brighter/darker than my locally rendered images
How to use UHD Cache at Super Renders Farm
Animation (prepass) / (rendering) with V-Ray Next
Ways to get exr format output (including render elements) when you use VRAY FRAME BUFFER
Rendering wrong camera due to locked "View to Render"
Ways to get exr format output (including render elements) at Super Renders Farm
Can I use saved irradiance map and light cache to reduce render time ?
How to render with pre-calculated V-ray irradiance map at Super Renders Farm
Can I use Xref scene, "merge" is needed ?
Image after render not full image
General recommend for rendering 3ds Max project in Super Renders Farm