Hi sorry to be a bother, but I think I may have found something, but I'm not entirely sure if it is just an odd interaction or an actual bug. When I was playing earlier today I went up against a Volcarona, it was using quiver dance and I had my Purrloin lock it into that move using encore, it then proceeded to hit me with savage spin out the following turn, seemingly ignoring encore. So I am wondering is this just a unique interaction of Z moves and encore or an actual bug?
Here is the replay of the original battle (encore happens on turn 15):
https://replay.pokemonshowdown.com/gen7ou-931614293
And here is a replay of a battle where someone helped me test it out and the same thing happened:
https://replay.pokemonshowdown.com/gen7ou-931622144