Purple florets sort at top of scroll?

[Sunfeathers]

I use rainbow sort for my scroll and for some reason all of my purple florets stay at the top of my scroll with the eggs and hatchlings. The gold ones sort themselves just fine, possibly they are coded to sort and the purples were accidentally left out or something? It's not a huge issue but I wanted to mention it because it's been around ever since the release of the florets.