So, I needed to look back at a 2018 file to see about something.  When I opened it up, it displayed the message that things had changed since we filed the return.  We never filed an amendment, so I looked at what it said was different.  They only thing different was the tax (Sch D method).  According to this, if I file an amendment, my client would be entitled to a refund.  

Is this a bug?  Or was one fixed after I filed, and I didn't know about it?  I don't want to give him false hope, but if he is entitled to the extra money, I want to help him file for it.  

Thank you!