When using the G90N radio and selecting the "G90" option in JTDX, I encountered the same issue. When using the IC-705, all functions work normally. However, when using JTDX, I also experienced the following: The OmniRig software, which is recommended by most users, also produced an error. Switching to flrig did not cause any problems, and it offers more features. It's best to try different options and see what works best for you, as many XieGu firmware updates are focused on fixing or improving FT8 functionality. The specific issues may vary depending on the firmware version, so flexibility is key.