Brightness adjustments crazy in 1st person view

Beginning with the 1/31 update, brightness is constantly changing in first person view (I was on the Jungle Circuit).

Hi Jim - 

Can you please capture a video of what you’re seeing for our review?

It’s called ‘bloom’. It is the simulation of your eyes adjusting to ambient light. It is a good thing but it needs refinement. It needs to happen a bit slower at times.

People that work at Zwift: Repeat… ‘feature, not a bug.  feature, not a bug’.

I got big squares that bounce around when im inside the tunnels on the Jungle circuit

I’ve captured a video showing the brightness changes. Particularly egregious is just after the stone overpass, when it flickers between brighter and darker several times.

I’ve uploaded the video to Google Drive at

This might help in resolving the issue:


Thanks for the suggestion. Unfortunately, it doesn’t help.