You're not telling us anything about
WHEN in the process this is happening, nor the precise
model number. It's unlikely you will find help here if this is a software bug. The developers for CHIRP aren't here. You're more likely to find them on the CHIRP email reflector, the URL for which you will find in message 10 of this thread.
RT systems supports a number of Baofeng radios - and may be a better bet since they have a dedicated customer service line, their own knowledge base from which to look up issues. Here's what they have for the various Baofeng models...be sure to select which kind of radio this - a handheld or mobile
We offer the most up-to-date software & USB cables for programming Baofeng amateur radios. Shop online now to download software updates & order USB cables.
www.rtsystemsinc.com
Mike