Hmm that's weird. It's not the first time this happened though. This is the second game that this has happened. And I already checked their status and compare them to the ones that has maximum obedience and loyalty. Weirdly enough, currently on my third game, this problem didn't happened. (Although I had to restart the game all the same when I realized I speedplayed and forgot about Maple. Ugh.) Nevermind though, since the developer himself said the condition on why I'm unable to do it. I'll just chalk it up to my meddling with the save files.