The three lights to the immediate left of the ramp entrance in TDP now open the side gutter gates. It appears the function of those three lights and the ones up and to the left of the magnetic swirl have been inverted.
I seem to recall that the swap of the functions of those two light sets was noted in the last update ... in other words, I believe it was the intention of the developers. (For what it is worth, maybe I am just used to the old way, but I prefer the old setup.)
However, I have noticed what seems to be a repeatable bug with the mission behavior of the three lights to the left of the ramp entrance. When those three lights are the current mission objective, the act of lighting all three lights does not cause the program to record a successful mission. The lights flash a few times, then turn off, but the mission arrow light remains lit, and the mission timer keeps ticking and eventually expires. I have even achieved lighting the three lights twice during the same mission time allotment (amazingly) and still there is no indication that the mission has been achieved.