Sad to say this after the previous post but I have to quit using Kumari to stream. Twitch's ingests are too unreliable and Kumari just blows up in RAM usage under the strain.
I have the video bitrate down to 800, and if I start pushing it lower then the video quality really starts to degrade.
I really hate to give up on this but it seems like I have worse problems than everyone else with Twitch ingests, since they started integrating more services and loading the ingests more. There clearly is a marked decline in Twitch quality, but at the same time it's just me on Kumari who seems to be having worse problems than anyone else.
And sure enough, I tried CamTwist + Cocoasplit and it worked okay on an ingest that almost never works for me, IAD.