I think Ive found a bug on showdown. I am unable to use Z-Acupressure with Drapion. I can select the checkbox and the move, but the turn never proceeds afterwards. Idk if it is only an issue with Drapion, but I'll see if I can do a lil testing soon. I suspect that it's just Z-Acupressure.
Here's the relevant replay:
http://replay.pokemonshowdown.com/gen7pokebankdoublesou-500673293. Third match it cost me, I thought something was fishy, I thought it was my connection at first, but when I messed with timer it was clearly still connected and counting me down, lol. Replay is that third match, the only one saved.
I've also included an image at the point in the replay where I successfully non-Z Acupressured (and the match proceeded), which indicated to me that I probably wasn't just doing something stupid and there's an actual issue. Someone in the "Help" chat room was speculating it might have something to do with it not knowing which 'mon to target, but I have no real idea.
I've never filed one of these things before, so if it's a known issue or something I apologize.
For the record, Shuckle is also carrying Acupressure with a mental herb. Drapion is carrying the Normalium Z, and I'm not THAT dumb. Confused some people in the chat, so I thought I'd clarify :P
Thanks for your time.