Time and distance difference after saving

Well, my wife yesterday ran between 5,1 and 5,4 KM(don’t know exactly) at Zwift Run (Free Run) and after saving the run, the Companion App said that she ran only 3,91 KM.

Also there was a difference at the End Time. It looks like all data were cancelled after Kilometer 3,91.

What could be wrong here?

Thank you and best regards