STP: Reportable Employer Super Contributions not showing up in STP reports

Hi,

I'm trying to finalise our STP reporting for the 2019-20 year, and not all of the Salary Sacrifice (Superannuation) entries appear to have made it across to the single touch payroll as Reportable Employer Super Contributions.

Here is an example for our Payroll Activity (detail) report:

Compared with our STP report for the same employee / director:

For some reason only 4500.00 of the 14996.00 of salary sacrifice payments have shown up as RESC amounts. All other amounts are carried over, and there is no difference in any of the salary sacrifice entries. The only thing I can think of that would be unusual is that the salary sacrifice entries were all entered into payroll on days where no other wages were recorded, for example Base Salary was 2250.00 and Directors Sal Sac Super was -2250.00, giving a zero amount paycheque. However this was true for all entries to make up to the 14996.00 amount. They were all submitted using STP. I don't understand why only some of these entries made it across to STP reporting. Please help!