I started a premium day, but while I was playing hard with BKs, in the loots there were mostly none pumkins, only twice 18 (+50%).
The droprate significantly lessened. On not premium days before the droprate of the loots were much higher, and got only few without any pumpkins. Why was the change? I think there should have been more than just luck, which determined the low drop of pumpking. Maybe a bug?