I'm running into an odd error in ZipShip 3.0.1 on Zen-Cart 1.5.7c.

For the one zone that has two zip codes (entered as: 98571,98562), the shipping option does not display. It also does not display on the zones listed after the one with two zip codes...

for all the other zones, where there is only one zip code, it works fine.

When the address is in a working zone, the user sees this on the shipping page:

Shipping Method:
This is currently the only shipping method available to use on this order.
Zipcode Rate
$12.00
Deliver To Zipcode: 98535
But in the non-working zone, they only get this:

Shipping Method:
This is currently the only shipping method available to use on this order.
I suspect something is getting boogered with the comma...

Any ideas?