X1 Message Indicator

For the past few weeks, when pressing the Xfinity button for the 1st time in the day, I get the blue dot message waiting indicator 4 or 5 days a week.  When I check for messages, there are none, but the blue dot goes away.

This was an issue a long time ago.  Now it is back.  When I contacted support, they didn't even know about the blue dot and wanted to know where it was!  They wanted me to re-boot to clear it.  They were clueless.

Anyone from Comcast care to comment on this?