Anyone ever seen siamese p-bulbs?

[gixrj18]

I've had this Blc. Walanie Leopard 'Ching Hua' for about two years. Last year, it's light conditions were too low to bloom, so it didn't bloom at all last year. Now that it has started active growth season, it seems to be pushing out siamese p-bulbs. They start out looking like regular keikis....then, like butterflies emerging from a cocoon, they morph out of the previous keiki skin as two p-bulbs. Has anyone ever seen this, or know what may cause it?