Sideways bend. Nothing appears vertically distorted. No gravity loads apparent.
Clear day, now sun is shining - at 2:00 pm, right? But it's Canada.
Seems like the sun heated up those three girders - which were either jammed in place (no room to expand) or were wedged in temporarily in the previous days and night of cold, and were not anchored properly to the skid plates/expansion plates to allow movement.
The others were properly installed, or were the proper length to begin with.