The "Color Balance" setting on the Kasina allows you to lower the brightness of a specific channel.
It lights up all the lights, and then if you reduce the value of the color/channel you are set on, you'll see it go dimmer. Take one and reduce it to 0 and you'll see what I mean.

To me it looks like your Kasina is working exactly as it should. I can't explain why you were having a different experience in the past as things look perfect at the moment.

Again, my suggestion for more interesting visuals would be to try some SpectraStrobe (SS) sessions. There's lots of them included - I'll bet you find some you really enjoy.