Has anyone noticed a bug with Toxic in battle? I use Toxic frequently in the Battle Tree and sometimes it seems to bug out. If I toxic the enemy Pokemon and they do something like Recover, sometimes their HP goes up as it should, but then they are no longer poisoned from Toxic.

Their HP bar still shows a flashing poison, but they take no damage from poison whatsoever, and I can't re-status them again, saying it failed.

This has to be a bug, right? It's happened several times.