I am using Strava on my Android phone to track my runs. It seems like the moving time is sometimes reduced when I save the activity. On the result screen before saving the activity everything seems to be correct, but after it is saved, the moving time is sometimes reduced a lot as well as the times per kilometer. The elapsed time however seems to be realistic.
In the situations when I faced that behaviour, I had paused the activity during the run for a longer time. It seems like the moving time is reduced by the difference between moving time and elapsed time when the activity is stored. And the elapsed time is set to the real moving time.
Unfortunately I don’t have screenshots from the activity before saving it right now, but I will try to produce some if this helps.
Currently I can only provide screenshots from the data that is shown after I saved the activity. There I can see that the times per kilometer are completely unrealistic. At this run I was really slow with a pace of 6 - 7 min / km.
And here a second example where the times were even more unlikely:
