Hi justin,
i am NANDA, I am facing same problem, once i unplug the USB cable and plug it back again the application wont start, to restart application i have to press reset button. you have mentioned about reset RX interrupt line. Can help me out in this regard by specifying which flag or register i have to reset. because i have tried different register like Rxerror and some other its not working.
Regards
Nanda