Bug: flickers when panning

this could be a bug with OS X 10.9.3 beta and/or new Unreal drop for AMD performance fixes on OS X but I thought I’d post:

http://dl.dropbox.com/u/7990437/%20flicker.mov

It happened in previous builds though
link text

Hi cgbeige,

What type of Mac are you running this on and what hardware are you using?

I attached Mac profile but here it is:

Mac Pro 8-core 2013
FirePro D700
10.9.3 latest drop (I am waiting on a Mari fix that"s why I’m using betas)

Hey cgbeige,

It looks like issue is stemming from your PostProcessVolume vignette, as that’s where flashing is taking place. I can’t see exactly what’s causing it, though. Would you let me see a screenshot of Details for your GlobalPostProcessVolume? Do you have a Material on your volume?

I just disabled vignette and other LUT tweak in postprocess and it still happens.