Sort of unrelated to what you're asking, but it looks like you've got downloads of all the versions of your app, not just the latest, and I'm wondering how you're doing that. (I just switched to Butler and I can't figure out how to show old versions for download.)
Are you just creating a new "channel" for every version of the game? It might be that you have to do that, but it would feel silly to do so as you're then breaking the whole point of channels which is to provide a single release item that gets updated with new versions whenever they come out. I wish there was a way to let users download old versions without having to create a new channel for each version.