The Support team has collected a few reports of the Strava App failing to auto-pause when the S7 phone is stationary, causing the Activity's total moving time to be inaccurate (more than it should be). The reports also seem to be running Android OS 6.
For example, a Strava member stops for 10 minutes to fix a flat tire, and those 10 minutes are included in the activity's total "Moving Time" because the timer doesn't auto-pause. Keep in mind that this issue is not the same as time being added to Segments, and also keep in mind that you'll need to be completely stationary for auto-pause to activate: entering a building can disrupt the GPS signal, and walking around while taking a break from your activity can both "un-pause" the auto-pause.
That being said, we recommend checking your phone to disable any battery saving settings, or set the performance to "normal".
Those of you experiencing this issue, please add your comment below and include a link to your activity as an example with a brief description.