Receive works just fine. The issue is that (a) CAT is not working (b) transmit does not work (c) since cat isn't working (d) can't change band/frequency from wsjt-x.
What I did find out is that grig does work to change frequencies on the zbitx if it is started with? rigctl arguments.
So there must be something different in how fldigi
and wsjtx handle hamlib for them not to work.
Also tune does not work in FT8 mode. Works in other modes not just FT8.