There are two "Trim FR Cab" and no "Trim FL Cab" for the shortbed B200, when you buy either you only get the Trim FR Cab.
#B200 Short Bed Roof Trim Left side is missing from catalog
carmine osprey
One of these works on the left side, seems to just be mislabeled as "FR" instead of "FL" - unknown which is which
grave trench
If you look at the bottom one you have highlighted. It's flipped to the other side. It's the left side. Just named wrong.
carmine osprey
If you look at the bottom one you have highlighted. It's flipped to the other si...
That's probably a better explaination for the bug 😛