NOT the fault of the 7300.. that is a software issue. . Also look on WSJT-x and see what the
File>Settings>Radio tab, under Mode is set to Data/Pkt.
My WSJT-X update wish list:
1. I wish it would let you run in the radio's memories and not insist on switching the radio to the VFO. Would make 60 meter operation much easier for radios that only have 60 meters open in memory channels. Most radios have to be modified to run FT8 easily on 60 meters. The Kenwood TS590 is one of the exceptions. Out of the box it will transmit on the 60 meter frequencies in VFO mode.
2. I wish WSJT wouldn't insist on moving the VFO back to the "standard" FT8 frequency when making menu changes, like switching between F/H mode and normal mode. I wish it would keep you on whatever frequency the radio was on. Not too big of a deal if you are in front of the radio, a much bigger pain if you are operating remotely.
Both of these should be easy fixes in the WSJT-X software. Not sure what advantage having these omissions currently have for operation. Maybe I am missing something.
73 John AF5CC