non-mutually exclusive outcomes


I have 4 outcomes (A B C D) that one of them is calculated as a weighted average of the first 2 (D=0.6*B + 0.4*C).
Then I ran ANOVA to examine the effect of 2 factors on the 4 outcomes.

My analysis was rejected because they said that D is not mutually exclusive from all other factors.

Any thought about the severity of that mistake? Do I have to exclude the mutually inclusive outcomes or I can still report the results? If yes, any thought on how to justify the analysis?