I opened this post from the hot-feed today in 0.1.27. As I went through the collection of answers, I voted on several and commented on 3 of them. When I got done, I realized none of my comments were showing up. I refreshed the pane and still nothing. I opened the question in a browser and discovered my last comment was actually showing up, but not on the answer I posted it on!
I re-commented from the browser and deleted the bogus comment from the app. Later when I checked back I discovered at least one more of the comments showed up -- this time late as well as on the wrong answer.
Something is short circuiting. Perhaps the fact that this was an active question with votes and comments flowing freely during the time I had it open and the position of answers was changing caused the bork? Whatever the case, I'm sure I selected the comment button from below the correct answers, and just as sure that my comments (of the ones that did show up) turned up on the wrong answers.