Must be the frame : unscrewed the front derailleur plate and the carbon seems sunken
That looks more like they flattened the tube for better stability. if you look at the FD holder, it probably will be flat to match the flat location on the tube...
Has this set up ever worked? or are you just trying to get it set up now?
what Crank set are you using?
Here is how I would go about trouble shooting find out how far the derailleur will move. (back off the limit screws) does it actually move far enough and properly (make sure there isn't a mechanical problem with the motion(
what about the crankset? is is centered on the bike (check distance of crank arms to center of bike)
Are there spacers shifting the location of the crank?
centerline of the front gears should match the centerline of rear gears.
If the crankset is shifted to far out on the gear side the FD won't reach properly... if so are there spacers on the gear side - move them to the opposite side (if actually needed)
Is the bottom bracket the correct size? - even if it is the correct size there are variations just to make us all crazy...
The FD is pretty simple... if the gears are in the correct location and FD aligned it should at least give some sort of decent results.