[Eagleback]

It looks to me as the slide channels are bent so the arm pops out of the track. I have the same windows and I would like to make mine open up further by removing the stop that they placed in the track between the arm slides, but I see no other way of getting the arms out or in your case back in the track that is mounted on the window glass. I do see that I have another rivet that is about half way down the arm. I was thinking about drilling that one out instead so I can remove the arm and take the stop out of the channel but I am a little chicken that I might break something.