Worked 3 months in 2019, contributed $3500 to HSA. Is that considered excessive contribution?

I was shown by the system that I have an excessive contribution of $3500 when I'm filling for 2019 taxes. I don't understand why since that's the exact limit amount. Is it because I only worked for 3 months last year so my limit is 1/4 of the $3500? But then the excessive amount doesn't make sense... I should only be 3/4 over the limit.... I'm so confused. Please shed light. Thanks!