duration_limit problem #28

Is it possible that setting duration_limit when we have a large quantity of data brings the algorithm into a soft lock state where it fails to build the initial population ? I'm having this problem with 424 clients, duration_limit = 40_000 and nbVeh = 50.
I would like to point out that the same code without duration_limit works, all routes are under 40_000 seconds in duration and 6 trucks are needed to meet customer demands