The restoration chart in the sleep module is not populating. It looks the the app is calculating the percentages but the chart is blank. The other two charts (hours asleep/awake & sleep cycle) are populating fine. I’m using an Apple IPad 4 And I have a Fitbit InspireHR I purchased in Dec 2019.
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Best AnswerI have iPhone 11 also and the sleep restoration graph isn't populated even though it gives me a score.