The elevation chart for all of my runs that occured more than 6 weeks ago is now blank. I know that the data was recorded, because it used to be there and the min/max and gain data is still there, but the chart is blank.
This hasn't always been the case becuase I know that I have looked back at historic elevation data before.
For example - today (21st March) I can see the elevation chart for a run on 16th Feb, but not one on 1st Feb. If I come back in a few weeks, the chard for the one on 16th will be blank.
Any ideas why this has happened?
Edit - the same has happened with my friend's data (she has the same watch as me - Forerunner 10).