Nylea, Keen-Eyed did not trigger at end of turn, after Song of Creation discards. [Fix in 4.7]

I cast Song of Creation first, and Nylea, Keen-Eyed second. I expected Nylea to trigger at the end of turn, after SoC finishes discarding. Normally, supports are triggering in the order that they were cast.

Using- Sarkhan, Unbroken

Event- The Colossal Tussle

Node- Top

Event Supports- Side Effect (me), Behemoth’s Brawl (Greg)

Phylath, World Sculptor
Lore Drakkis
Beanstalk Giant
Song of Creation 
Nylea, Keen-Eyed
Animist’s Awakening
Reclaim the Wastes
Eerie Ultimatum
Embercleave
Ruinous Ultimatum

Opponent also Sarkhan Unbroken. No cards from Greg were in play.