No Rider List?

Hi all

Did a Zwift race on the weekend. When I actually started the event, the rider list disappeared - during the warmup in the ‘corral’ I could see the chat where the rider list would normally be and then when the race started that section of the screen was just blank. I’m using an ipad.

Is this a setting controllable by the person who set up the race? Or something in my user settings? It make racing really hard as it was a mixed group and I didn’t know if I was near ‘my group’ or with higher category riders.