Distributed Render Nodes Ignoring Render Region

[Blanco]

I have set up an image to render a region using my main workstation and some render nodes. Whilst the main workstation renders only what is in the render region box, the DR nodes render the entire image, which is a huge waste or resources.
Is this a fault or have I've missed a switch/setting somewhere?
Thanks

Max 2023, Corona 11
 

[Avi]

Have you tried setting the region in Max itself? Please see the screenshot attached.