Hi
@Deketx ... I think you and I are seeing similar issues. I believe that to get to this point, we have made similar mistakes, by rapidly moving our newly flowering plants up to the supposed max of 6g/g of MC. I am looking at your deep deep hunter's green on your bud shot and thinking that I saw something similar here before I determined that I was overdosing my plants. I am having a similar potassium problem, but not as developed as yours is.
It is my belief that too much MC can lock out potassium. I have tried backing my MC dosage down 1 full gram per gallon to try to stop this. You just got the opposite advice here on this thread. I don't envy the decision you now have to make.