Not a question for the community but since Intuit doesn't offer a platform for us to alert them to issues: I'll put it out here:

INTUIT: the software (Lacerte) for Montana is NOT, I repeat, NOT calculating the adjustment for unemployment exclusion from taxable income correctly on these filing status':  SINGLE, MFJ & HOH.

It is, somehow, calculating it correctly for MFSS.  Please fix this ASAP & send an update out.