Why are the negative lines excluded from the "Closed Amount" on the ITI header even if all lines are fully paid in an ITA?

This is a CORE defect – negative lines are not included in the Closed Amount in the ITI header even if the ITI is already fully paid in an ITA. Given that the defect does not have any accounting effect and has been fixed in more recent release, the State is not going to request a patch for it. Before the next CORE upgrade, CORE OPS is going to perform datafix to those ITI docs with this issue periodically as system maintenance. All ITI docs processed before 12/14/2018 have been cleared with this issue via the last datafix. Another datafix is going to be executed towards the end of FY2019.