Cloud GI Quality only affects v3 clouds. Meanwhile the GI Cache does *not* cache v3 cloud GI as of yet. So set Cloud GI higher if you're using v3 clouds and getting flicker. Note that the GI cache and environment lighting in general *do* affect v3 clouds, so if you are not using caching and getting flicker, the first thing to do is enable the cache and see how much it helps with flicker overall, before increasing the Cloud GI too much. This will allow you to only increase Cloud GI to the minimum amount necessary to get rid of your flicker from the cloud lighting solution changes between frames, rather than from a lack of cached+blended environment GI. Does that make sense?
- Oshyan