x-108 bugs CAT Control stops after transmitting once (1 Viewer)

[ZL1SAM]

Hi,
New to HF and am using an X1o8G SN CXG109xx. When I try and tx any digi modes using CAT and CAT PTT control, the radio will not tx audio and sometimes gets stuck in transmit. The computer will stop talking to the radio until it is restarted. It almost seems like there is RF in the USB port?

Any help is appreciated.

73 de ZL1SAM