This is not the first time I observed this behavior in other chimera African violets. This time it happens to be in Party Fun. It starts out as a bifurcation of the bloom stalks coloring. One of the flower stalks turns a solid color. In this case purple. The other stalk remains true to it’s chimera color and pattern. In time the entire plant appears to succumb to the dominant solid color and the plant loses it’s chimera expression. I have observed this with a number of chimera African violets. Sometimes the conversion is fast and complete without the bifurcation.