the problem that i found, i think i found in the kepler missions is kepler use photometry dims in light of the star to discover planers.to realize that, the disk if planets must align to Kepler to see the dims from the planets.now the problem is in the radius to kepler all the planets (planet disks) are in alignment that you see the planets pass the star, this can be happening.The alignment from kepler to the planet disks is the problem.
There can be multiple planets transiting the star (even without a Laplace resonance). However, since all planets have different distances from their star, they also have different periods, so while they would occasionally block the light of the star "together", most of the time, they would not, and just transit individually. By looking at many transits spread over multiple orbits, the orbits (and radii) of the individual planets can be disentangled.