The workaround does not work with DNGs because RT gives higher priority on the matrix which exists in DNG exif than the one in camconst.json
You have to change the colormatrix2 tag in DNg’s exif to
1.5613 -0.6767 -0.2468 -0.1924 0.5307 0.0221 0.0323 -0.0200 0.2196
if you want to try the same matrix. This matrix should be close enough for our job … But ideally we have to calculate a dedicated IR-matrix for A480. I will try later today based on the A480 IR-sample but it would be better if we had a cc24 shot …