A) The most common reason for this is the latches may have been installed either backwards, upside down, or into the wrong side of the frame (ie: the left and right latches have become reversed)  CLICK HERE to closely watch the assembly video of the Alloy frames. B) It’s possible one of the sides of the frame has become bent in transit. If you disassemble the frame and lay each piece on a flat counter top, roll the piece on all 4 sides to see if any of the pieces appears to be bent. If so, please contact us to request a replacement of that bent side.