Inspire HR only showing simplified sleep details

[SunsetRunner]

I have had the Inspire HR for about 14 months. In the last 20 days, except for 3 days, it only recorded simplified sleep details. I have been on chat with Fitbit support several times and here are the steps I've taken to try to fix it:

• resetting my HR device to factory setting
• removing and re-pairing my HR device to my app
• switching wearing on dominant vs non-dominant hands
• turning off HR function, resetting the device, turning HR function back on
• switching the Sleep Sensitivity setting between Sensitive and Normal

None has fixed the issue. It isn't clear why those 3 days recorded the Sleep Stages either. Fitbit support says they have to "escalate the issue to a higher level team" three times, but no one has gotten back to me. Does anyone have the same experience and/or solution?

Thank you!

Moderator edit: subject for clarity 

[LiliyaFitbit]

It’s good to see you in the community, @SunsetRunner.

Thanks for the details shared in your post and for already trying to resolve the issue. You can find more information about sleep stages in Why don't I see sleep stages today? Thank you for working with our Support team, please continue working with them since they have already all the details and special tools to continue assisting you. I am sure they are doing their best to investigate the issue and will get back to you as soon as possible. I appreciate your patience and understanding. 

See you around.