Animations off and status moves effects

[Gastronely 92]

Henlo. There's something that has been happening to me for a long time, sometimes, when i deactivate the animations for battles, and i trigger certain status affects, with abilities like Effect Spore, or normal moves like Spore, they sometimes wear off without doing anything, like, they just dissapear at the end of the turn, and the message of x"-pokemon has been cured of poisoning" never appears. I also have noticed that sleep moves wear off instantly when used, although this might be just bad luck, but still the status effects just keep deactivating. Thanks for reading~