Adjusting distance on cross-trainer?

So my Ocean decided I did 1.25 miles while the cross trainer itself said 2.46 miles. I was able to adjust the actual distance in the Suunto app, but the watch doesn't recognize this and still maintains I went 1.2 miles less. I feel like I am also shorted those steps, too, but honestly it doesn't give the data to be able to tell it. Do I just have to expect some things to be wrong or is there some way to fix this?