Apple's software problems, especially iOS 8, continue. The ball? He, again: the app Sade (Health) for those who do not remember, the application only started to work really for iOS 8.0.1 8.0.2 due to bugs in HealthKit (application API).
Apple explained the problem correctly in a support article. Check out our translation:
Blood glucose measurements and the Sade app
The Sade app allows you to manually enter and blood glucose values in mg / dl (milligrams per deciliter) measurements. This unit of measurement is used by some countries, while others use mmol / L (millimoles per liter).
HealthKit supports both units of measurement. However, if you measure your blood glucose using a device that displays in mmol / L, these values cannot be entered manually or displayed in the Health app with that unit of measurement.
To avoid confusion, in countries where mmol / L is often used, we will soon launch a software update that will temporarily remove the ability to manually enter and view blood glucose values in the Sade app while we work on an update to support both measurement units.
If you have already added values manually in the Health app, you will no longer see this data in the Health app after the update. However, your data will not be deleted and other applications with permission to read your health data will still have access to the blood glucose values you entered earlier.
Third-party applications will continue to be able to support both units of measurement and will continue to use the HealthKit APIs to store blood glucose data.
It is worth noting that this is not the only problem with the Sade app. As I said in my review of the app, some information is simply not synchronized correctly with it. One of the apps that I use here and that is already integrated with Sade is Health Mate, from Withings. Well look at the changelog that they had put in the app (now modified).
Regarding the integration with Sade, some of you may be experiencing some problems when importing data into the Sade app. We love Sade and are working hand in hand with Apple to make it better after all, a totally new app: it needs iteration.
The iOS 8.1 update should fix many bugs.
As always, we can only wait. What stage, Apple