As shown in the picture, the part of my window the side flange at the end of the side curtains is supposed to slip behind is entirely too thick to fit snugly while screwed into the pane above it. Am I missing something, or are these windows just bad for side flaps? Should I even bother continuing to try to install this A/C unit?
To add a little clarity, the side curtain flange hits the outcropped bit at the edge of the window, where the red arrow points, instead of fitting snugly behind it, where the yellow arrow points.
Here is a picture of the wing fitting snugly inside the windowframe, which it can only do when the window is not sitting behind the top rail.