Phal tetraspsis and Phal speciosa have the charming habit of blooming like Forest Gump's chocolates.. You never know what you are going to get. Potentially, every flower is a different combination of red and white. And looks like that characteristic is passed on to the offspring. It's a matter of taste... I find it charming, others may consider it a "fault". But it's dong what is expected, based on the parentage.