I was racing in Watopia last night and with about 5km to go I reached a turnoff at the end of the underwater tunnel. As I turned the racers around me dissapeared - I was still able to see my position in the race and everything else worked as normal. My girlfriend was Zwifting next to me and we had other devices running fine on WiFi so I don’t think it was a network issue. With a couple of km to go, I reached the desert turnaround and the riders in the race re-rendered.
The same thing happened in Watopia this morning on the Volcano Climb course (just free riding) - the riders in the game alternately rendered and ‘de-rendered’ when I reached turning points (although not every turn off). I was following a course, so didn’t choose any options to turn at any point.
I am running Zwift on a MacBook Pro. I’m sure you can understand how frustrating this is! In the race last night it seemed that while the riders around me didn’t render, I was unable to benefit from drafting effects - although staying at race power (which should have seen me stay in the group), when the riders around me rendered again I had been dropped by the other racers.
Any help would be much appreciated!