Yes, I had this happen about a month ago. The Dexcom rep I spoke to at first said that I must be restarting a sensor- even after I told her multiple times that I wasn’t. She said she could send me a new sensor. She was exceptionally unpleasant - even scolded me for placing my sensor on the back of my arm vs on my abdomen even though that was entirely u related to the reason I called.
It was very frustrating to know that I would have to take off a brand new, fully functioning sensor because of whatever went wrong.
I ended up responding to a survey that Dexcom sent me about the conversation- my rating was as low as I could give.
As a result of my survey response, I received a call from a different Dexcom rep who said it had nothing to do with a sensor restart. She recommended waiting 30 minutes in between sensor sessions- leaving the transmitter disconnected from any sensor during that time. I did appreciate this call because it helped clear up what the actual issue was so I could avoid a reoccurrence.