Hi Dave!
I just wanted to report that this happened with my IC-7300. It did not repeat on subsequent tries, but maybe there is some information that would be useful to you. Again, things are working normally now, so no action needed. If there's anything I can do to assist in testing or experimentation, I would be happy to help. Let me know.
Thanks,
Dean
1. In Commander->Config->General check "Display outgoing CI-V commands in Message window"
2. In Commander, click the "Msgs" button
3. Check the "Capture and display Primary CAT Port messages"
4. Uncheck "Continuous" under "Interrogation"
5. From Commander, send a command (in my case "FE FE E0 94 FB FD", to set TX power)
6. Restore "Captureer and display..." to unchecked, and "Interrogation" to "Continuous"
7. From JTDX (or, I assume WSJT) click the "Tune" button.
8. Radio communication fails, saying radio failed to follow the PTT command and subsequent "Test Cat" checks from JTDX fail.
9. Terminate and restart JTDX, still radio communication failure.
10. Terminate and restart Commander, radio communication restored.