It's a visual bug they are saying. Same bug has plagued Madden for years. An example is looking at NFL leaders in sacks. Your DE may be #2 in the league, but if you sort by NFL he won't populate on the list. If you sort by NFC, he'll be there along with many other players that weren't showing on the NFL tab either.
Not sure if it has to do with other stats they lack, if it's an algorithm issue, but it's definitely something EA has had a history with with Madden and I don't think they've fixed it to date and it's been an issue for like 7 or 8 years by now at least.