BUG: Minnesota update changes the refund amount because it clears the Grade fields on the "Ded K12 Exp Wks" Form

[nniesen]

The Minnesota update clears the Grade fields on the MN M1M "Deduction for K-12 Education Expenses Worksheet" ("Ded K12 Exp Wks" Form). Without the Grades, the deduction goes away and the refund is lost. This is the 3rd year in a row that this has happened to me when I went back in to print my taxes after they were accepted and I stupidly let it update the program after already filing my return. The bug is present in Windows Deluxe 2018, 2019, and 2020. This happens with every time the Minnesota software is updated.