Hi Rod,
I was doing an update on solarcampingaustralia.com.au, and did auto file then DB updated to V3.4.0 ozpost.
Check settings and Fastway was changed to city name instead of fastway-codes (that's less confusing) .
we were using BDB Wide Bay, so I changed it to Wide Bay
Tested cart and no Fastway
Changed fastway to Sunshine cost and fastway is working.