All offseason, I've been seeing varying trade values for the exact same players. A number of owners have been seeing this, and it's a big problem https://private75.myfootballnow.com/forums/thread/1/794?page=2#5249
I had a TE that I saw as 1350 and another owner confirmed he only saw as 863. I just traded him to a different team, and now looking at his card, his value is 1125. This is the player for reference. https://private75.myfootballnow.com/player/38