If something is not right with the runs shown in the calendar of the Stryd app on your iPhone or Android phone, you can refresh all your run data.
On your Android phone, open up the Stryd app. On the home screen, hit the three dots in the top right. Hit Refresh all Runs. That will update your calendar.
On your iPhone, go to settings. Scroll down to Debug Options. Hit Download Full Run History.
For additional information, please contact firstname.lastname@example.org.