you are good then it is growth and thats not a bad thing just probly starting to take off. every new sps I place in my tank the tips come nice and colorful then hits my water all trun the same color of the body then when time to grow the tips become nice again. nothing wrong just adjusting to the recent changes some take a few days some take a few months.
I'm still an SPS n00b but it looks like growth, especially since the lower one is doing it. I haven't experienced bleaching but I would think the coral would do it to approximately the same level (everything above the lower branch would be white).