Lines on screen during workouts

When completing workouts I get graphics lines across the screen, these get slowly worse/more dense until I pass a banner for the end of that work interval (I think the lines only disappear when i return to a rest interval).

I’m running zwift on android, I’m not sure if on other platforms the graphics change as intervals progress?

Also, tried to join a workout today. Logged on just as others were leaving pen. I got message about finding other riders but nothing happened just left me alone in start pen…

Thats a configurable feature - see here for details: Swift Zwift Tip: Disable Workout Mode Distortion Effect - YouTube

RideOn

You can disable it with in the Settings of the app.

Cheers all.