Unfortunately this still doesn’t fix the issue… even with shipping debug mode enabled (which confirms the correct zone is being used) we still see the paid options and don’t see the free option if there is a corresponding tax rule for the zipcode we are testing.
Thanks. We are already using the ‘hide other rates when free is available’ option.
I’ve also confirmed that we don’t have any zipcode login in the conditions for free shipping. Since this is triggered by a coupon we are using the “A valid free shipping coupon” option under the “Free shipping requires…” setting in the zone.
Any other thoughts on this?