Sense stopped tracking SpO2 data

[Nexussailor]

My watch stopped reading O2. Bought one week ago. Tried reinstalling clock face and loosening then tightening band. Nothing works. 

Moderator edit: subject for clarity

[Guy_]

What shows up in your Health Metrics, also did it show a good nights sleep?

NB. the clock face is not required on a Sense to get the SpO2 reading, it will appear in the App anyway.

[Witty_username]

I have had the Sense for several months now and the O2 sensor used to work fine. It stopped recording information three nights ago. Every other type of data is still collected and updated in the Health Metrics tab. I uninstalled and reinstalled the SPO2 app, restarted my device, etc, but this has not worked. Does anyone have advice?

[Guy_]

@Witty_username 

What Fitbit App version do you have?

What phone are you using?

[Nexussailor]

iPhone se and Fitbit health and exercise app. The o2 worked until 2 days ago. 

[Nexussailor]

It stopped showing in health metrics 2 days ago

[Witty_username]

Hi Guy, thank you for reaching out. I am using a Samsung Galaxy s10e and my Fitbit App version is 3.37.1 (20243550)

[Guy_]

Several people have reported the sudden SpO2 problem which may be a Fitbit server issue and not the watch or phone or App.

[23MEOWS]

I have the exact same issue!!  Last 3 nights nothing. 

[deiG]

This happens from time to time. Fitbit has never really fixed it. When it happens, SpO2 data are not shown in Fitbit app, but I can see them (data in the past 6 or 7 days) in Today app on the watch. 

[23MEOWS]

Unfortunately I don't see anything anywhere since it stopped working.   So annoying as this is important to me.  Thanks!Sent from my Verizon, Samsung Galaxy smartphone

Moderator Edit: Personal info removed

[Joni48]

Me too. There’s one green light and 1 red light when you look at the back of the Sense. 

[eezeepee]

@Joni48 Welcome to the Fitbit community.

Sorry but your reply is a bit out of context as replies don't copy who you are trying to reply to, even though it does say "Replying to...". It's best to mention someone with the @ .