Debuff bug

Played against a nemesis creature that gave me a debuff every turn my creatures take.

Bug: Sleep debuff, once I got it on my turn I could still attack / use spells. Even when it was my turn yet again, I could still attack / use spells.

Not sure if it’s the nemesis that makes this debuff to not work. Not sure if the same happens if I get Stone/Snare/Freeze.