Quicksell Values

I have cards with Quicksell value discrepancies. I have a 94 OVR that--according to mut.gg--should be quickselling for 19,000, but I can only quicksell it for 4,750. Why? Are there any other factors that go into determining Quicksell values other than the OVR of the card? And I would like to hear from EA on this.  I don't want to hear from other community members unless it is to complain about the same issue.