See images:
It was in today’s Standard Training Ground. The 2nd image is from my second turn to show there were 2 creatures destroyed from my library with Spree 1 of Lively Dirge both with a cost of 12 so one of them should’ve returned from the graveyard to the battlefield with Spree 2.
It doesn’t look to me like you hit Spree 2. It looks like you swapped to match both black and white, which only hits Spree 1. Spree looks at the number of times you’ve matched, not the number of islands.