Urgent - Animation in Vray producing either black or wrongly lit frames

HI
I have a large site model that I want to use to renter some move and fly throughs. I have got a seres of still renders from it which have worked well, but when I go to create animations it is giving me lots of issues. First I read that some issues where being generated by sketchup 24 and its animation engine and was advised to use sketchup 23 to create animations.
When I opened the model in sketchup 23 I could get the desired animations in sketchup. However when I try to render the same animation in Vray I have lots of issues. the frames either do not animate properly or are totally black. Please see attached images. Any idea what is causing this.
Thanks for your help
Reza



It looks like all three images are from the same frame but different render channels. (alpha, diffuse, RGB).