The issue occurs when you download the data from Revenue Quebec. There is a ghost entry somewhere on one of the RL slips. You need to carefully look through the RL slips that have entries and find the one or ones that have RED (override) entries. Hit FN F2 and cancel the override so the values are calculated. Search carefully because the issue could exist in an RL form you actually shouldn't have any entries in . That solved the problem for me, my wife and my daughter.
