Yes, it did change colors, I did a bit of checking with a really nice gal that use to be on Dave's that knows a lot about them, and she said that Big Yolk doesn't always bloom true, darn it!!
I had a sinningia, killed the poor thing! I am now thinking, yep you are correct with the humidity. We have a lot of humidity in the summer, but the winter with the heater on, it gets dry in the house. whoopsie poopsie!