Health settings data access

I use an app that tracks my running. I try to allow the app to write all the data points by selecting turn on All in the Settings>Health>Data Access & Devices>app name. A day or two later I will return and find that my setting selection has been reversed and several buttons no longer are activated to write. It is always the same set of buttons that have been de-activated. When I turn them all on and go for a run it records fine but by the next day the data buttons are turned off. I have to go back in and reset. This happened shortly after I changed my iPhone to a new one. I tried re-installing the app but that did not work