I don't know whether going between settings is causing the blue. I would rather have one setting - bright and close to OEM - put the bloody thing and forget about it. I think the settings feature is a real waste of time. I have Lux v3 and just like blue hot spots there are spots where the white doesn't come out. I have seen when driving and reflections off the bumper of the front car, and you can see the uneven spread. I know the design of the tubing for these lights are also a contributing factor. I wish that someone comes out with a real bright solution to make all ///3 owners happy. I think it's kind of hit and miss at the moment.
C'mon Lux, you can do this. I look forward to bright Angel Eyes