Hmmm really strange behavior this 30min/3min difference.
Take a look on _sys_bic schema, procedure and you may find your script view with name posfixed with "/proc" and execute it.
Give a try on running the runtime procedure created if it finish in 30min or 3min.
Maybe this can add more light on this scenario.
In what revision you are running? Do you have a chance to test in another revision? It's a new one ?
Regards, Fernando Da Rós