We just updated to FNC Gantt Chart 1.3.3.2 and found an issue which we already fixed in our code. The code in line 4468 of unit WEBLib.TMSFNCGanttChart.pas (function TTMSFNCCustomGanttChart.GetTaskListColumnValue) should actually be
Result := txt;
or with some context starting in line 4461:
else
begin
txt := '';
c := FTaskListOptions.Columns.GetColumnByName(AColumnName);
if Assigned(c) then
DoSetGanttListTaskColumnText(c, ATask, txt);
Result := txt;
end;