The Florida code report is displaying the IECC climate zone and not the Florida climate zone. The software is calculating the standard reference building correctly for all areas, the report is just not displaying the correct Florida adjusted climate zone. The climate zone is determined by the climate weather file chosen and despite what the report shows, all locations in Broward, Collier, Hendry, Lee, Miami-Dade, Monroe, and Palm Beach Counties are correctly calculated as Florida climate zone 1. The report will be fixed in the next release.

UPDATE: The report is fixed in version 5 of EnergyGauge USA.

For those projects in Broward County you may also want to see the solution for Ft. Lauderdale weather file which recommends using Hollywood weather file instead.