Yea, I have this one too.  My situation is Lacerte has no subtraction on the MO-A, correctly, as the capital gain/loss on the Federal is (3,000).  So, the line should be zero, as it is, but this diagnostic is there.  AND it is also an e-file diagnostic so we can't bypass it.

I have this same diag. With a minimal capital loss and it won't let me zero it either. Or rather, if I do zero it the diag doesn't go away. 

Little bit of an update, I have confirmed with MODOR that the capital loss is allowed since it is part of AGI.  There will be NO addback.  This is a Lacerte issue at this point and are at their mercy to get it corrected in the software.  

There is a trick to bypassing e-file diagnostics, fyi....

We are also getting this diagnostic.  It appears to be affecting clients with capital loss carryforwards.  Lacerte what is the timeline for a fix?

Thank you

@zajac2  Thank you for being part of this Community and for posting your questions and concerns. We truly appreciate you being here. If you haven’t already, please reach out to Lacerte Support for assistance, as they can best help with your specific situation. We appreciate your patience. Thank you again for being part of the community.

Lacerte, what is the timeline to get this critical diagnostic issue resolved. 

Hello, This will be addressed in a future update. In the meantime, you can disable e-file error checking. How to disable the e-file diagnostic error checking in Lacerte.