I am currently playing the HD Remastered version. When I first got to Macalania Woods i did both of the Butterfly games, and got the MP Sphere, and the Ether. My understanding is that you can do this a second time after defeating the Spherimorph, and then again after obtaining the airship. So after defeating the Spherimorph, I went back to do them the second time, and get the Megalixir x2, and Elixir x2. However, doing the Butterfly games is only resulting in an already opened, and empty chest appearing. So I decided to continue with the game, When I get back to Macalania Woods, after leaving Bevelle, I tried the Butterfly games again, but again, only rewarded with already opened chests. Is there something I am missing that is needed to refresh this game, and give the new rewards, or is this some kind of glitch? Everywhere I look online, people say you can it after defeating the Spherimorph, which I have already done, and it's still before the airship.