In my case my SS payment ended in .36 and if I put .37 voilá no w2c warning! so yeah I think its definitely a bug in the system, problem is I won't modify that to .37 because that's not what my W2 says. I waited almost 5 days for this bug to be fixed and is still showing up and at this point I'll be filing notwithstanding the warning. But it upsets my OCD.
