Rural Australia in Sequencer, Landscape Material breaks

I am repeatedly encountering a problem in 5.2.1 with Rural Australia whereby every time I try to render a movie of it from the sequencer, the landscape material goes dark red, like this:

I have tried playing with Lumen, removed some emitters which were interfering with Build Landscape All but the problem persists. When I open the editor it’s fine but anything I try and do to render a sequence breaks it.

HI, did you work outr a solution to this. Thinking of using same pack. Love to see what you did with it!

@lasource_james sadly, no I got no response so moved on to a different pack for my proof of concept.