Line Changes After Pick is made

I am noticing that my picks are changing after I have selected my pick. This has happened two days in a row. So far I have not been affected negatively from this, but it could happen and I could lose.

For example late last night I picked Louisville +1. I submitted the pick and it was shown as pending. A few minutes ago I log in and see that my pending pick shows Louisville +2. What is causing this? How can this happen?
I know that this difference is in my favor, but like I said, if this continues to happen in the future it could be a 1 or 2 point difference that may cause me to lose the game.

I just noticed another thread about the same issue from earlier this week involving the Kansas line.

I am not alone with this issue. It is some kind of error and needs to be fixed or several picks will be losses in close games.