Ninja's Shukuchi and Dragoon's Elusive Jump share a cooldown with each other, despite being different jobs and having different CD timers.

Assuming you're in a main city/housing area (so no CDs when changing jobs), and you use Shukuchi (1m CD) then change to Dragoon, Elusive Jump will also be on a 1m CD.

Doing it the opposite way, if you use Elusive Jump (3m CD) then change to Ninja, Shukuchi will actually be on a 3m CD, as well--this is certainly the more frustrating of the two, given that Shukuchi's CD timer is only 1m.