W2, Box 14, Railroad Taxes, RRT1 "it looks like you're due a refund from your employer"

Hello All, I have RRT1 & RRT2 correctly entered in to TurboTax, but I'm getting a message about RRT1 that says "it looks like you're due a refund from your employer."  The message goes on to say "amount we calculated, 0 - excess withheld $6810.  I'm not getting any messages like this for RRT2 that I entered in box 14 right under RRT1.  Do I need to do anything further with this, or just ignore the message? (!!!)  Thank you, Lee