Charge 2 Fails to Sync or show sleep for the last 2 days

[SunsetRunner]

Every time I slide the screen down & release in order to sync, a red horizontal line appears where it was usually a green progress bar, & it says "failed to sync de...".

It shows calories used & steps, but won't show exercise or sleep.

I've read all the articles I could find.  The Fitbit is charged, bluetooth is on (& is the only device using bluetooth at the moment or while trying to sync).

Any ideas on how to fix this, as my primary use of Fitbit is to analyze sleep & show exercise minutes?

Thank you in advance

[elreh]

Mine is also not showing exercise and sleep.

I reset the bluetooth.

I removed and reset the app.

This did not change the results.

[SunsetRunner]

For what it's worth, today, it sync'd.  However, it said I had slept about 10 hours, which hasn't happened since I was an infant.  The next day it said about 6-1/2 hours, which is closer.  It also said, for the last 2 days, that it couldn't analyze my sleep, despite the long sleep hours.

[Dccc]

Mine has not shown sleep details for the last 2 days. I reset the tracker yesterday but it didn't record my sleep details again last night.