Invisible sounds like early New Order to me. I remember thinking "huh, they're making a blatant New Order track a decade after it was a trend, they're kinda out of touch!" when I first heard it, but then I remembered that they've been heavily influenced by Joy Division/New Order since the beginning, and if anyone can get away with using that template it's U2!
It ought to have been on the album instead of California, or maybe Every Breaking Wave, which is clearly a song about adults. Anyway, Invisible fits the narrative musically and lyrically, and it should have been on the album.