The gym minigame is broken, when you finish the green bar while having clicked multiple times in one pass, it doesn't end the minigame so you're forced to miss at least one shot to make the game process you finished the minigame.
I've been through the same thing,
When I came into the green bar, I didn't press it many times, but when I came into the green bar,
I pressed it once, sent it, and then pressed it again when I came back in, so it was solved safely.
