If you void/cancel a check, the date you voided the check should be included in the positive pay file, but the original check date is being added instead in the positive file.

This had been resolved in 10.0.24 or 10.0.25 but was not working in 10.0.26 going forward.

Remarks from MS Support:

The bug fix has a dependency on bug 728907. Based on the priority, the bug fix is postponed. We may reconsider the fix when we get more customer feedback on this issue.