Problem with colors in a ring chart

Hello.

I’m trying to make myself a ring chart with multiple rings.

However, the colours don’t match the legend when I change the colour of the pieces, or when changing the colour of the square in the legend (Sometimes even the square doesn’t change its colour).


In addition: I want A to be in both rings, and that the numbers are in a different column than the letters.

Link: Pasteboard - Uploaded Image

May be this is related to bug #tdf96332