Enduro Distance 0.01km after 8 km or more hike.

Connect recorded the complete Enduro GPS route accurately during a 1 hour and 32 min hike.  Plotting the recorded data with time results in an accurate plot.  Plotting the recorded data with distance results in a bad plot. (Incomplete.). Somehow the distance data became corrupt.  The response I received from Garmin Support was that it was likely a one off since this error has never happened to me before.  Somehow the file became corrupt.  Support suggested that I delete this activity from my Garmin Enduro directly.