Hello, I am aware of this, its an issue with the fact that the TpF2 track + loading gauge is slightly different to the real life UK one. In transport fever, the six-foot (gap between the 2 tracks) is _much_ wider than in real life, hence the tracks are actually closer to the sides of the bridge than they would be irl.
Hence, because the trusses make a /\ shape above the tracks, the trains glitch through the trusses as can be seen in that photo, because really the track should be about 1m further "in" towards the taller part of the /\ shape made by the trusses.