I have a '16 F22 that I just got at the end of June and have experienced the same issue.
Spoke to my dealer (The Edge, can probably comment further), and they there's an update needed on the auto start and next time my boat's in (likely the end of the year at this point) they'll reflash the ecu and it will solve the problem.
In the meantime if you hold the key, as opposed to turning and letting go it helps, though doesn't solve the problem.