Sorry to go off-topic but what are Nine’s studio arrangements in Willoughby these days? Their special bulletin (which has now ended) was clearly coming from the ACA set but the area behind Vicki Jardim when she was at the desk looked like the edge of the national set (ie you could see the dotty panels from behind the sport position, the edge of the window etc).
Are these two sets now in the same space? It would explain why ACA uses the national desk if they are.