There was a rather extensive discussion about that very situation on this site in the last few months. Unfortunately, my quick search did not turn it up. Numerous other similar questions did show going back as far as 4-years ago. My recollection of the extended discussion was that it came down to mis-labeling. They are reporting total proceeds and (as I recall) that was a sensible value to report, but they labeled it wrong as realized gains. Perhaps someone else can find that discussion. I was not active in it.
