Direct Deposit issue re modifying deductions or taxes

I have had 2 client issues in the past 2 days and I think they are related.

First client did not have a MA FMLA percentage setup on the first 2 checks of the year.  We have calculated the amount needed to be added, and they started a payroll run, calculated taxes, changed the first employee (who had direct deposit) to Manual Taxes, and added in the additional FMLA taxes.  Got an error about the check being negative, which I figured would be resolved by rerunning the tax calculation.  HOWEVER, it looks like if Manual Taxes is checked, Direct Deposit isn't recalculated, either...

Second client had an employee with one 8 hours in a week and garnishment.  The first run ended up with a negative check because of the garnishment, so client modified the garnishment to the correct smaller amount.  Employee had 2 direct deposit accounts - one for $50, the other for the net.  When rerunning tax calculation with the new lower garnishment (so there was a net check), the Direct Deposit was not calculated and the employee ended up with a check.

In both of these cases, I believe the Direct Deposit calculation worked differently in the pre-2.18 version of Payroll.  Is it an issue now, or is there some check box or something I need to check to make the DD recalculate correctly after changes are made?