Hi everyone,
I searched this thread and found that others shared my problem where you could no longer change shipping address once you've reached the payment page of checkout. For me, it pops up a lighbox window, but the overlayed page is the same page (it did not open a different page to modify the address).

The only resolution I saw was that certain pages might need to be excluded from Simple SEO URL in the config, so I did that. Here's what I'm excluding:

checkout_payment, quick_checkout, fec_confirmation, fec_change_new_address, checkout_shipping_address, qc_change_new_address, /fec/fec_change_new_address.php

Is there something else I need to exclude, or is there a different resolution?

Thanks,
TJ