Graphic glitches Mac Mini (2020, M1)

Hi,

Is anyone else getting these colourful graphic glitches? Most prominent on Neokyo routes but occasionally in Paris and on the new segments in Watopia as well. I’m on a 2020 Mac Mini (M1) with the latest version of MacOS and Zwift. Nothing else running on the machine while Zwifting…

It’s more spectacular as the colours flash wildly for 20-30 seconds…

TIA

Philip