To rectify the leave application days appearing incorrectly, please do as follows:
Go to the Leave module, Settings, Leave type.
Select NoPay and click the General tab.
Check if the Offday and holidays are inclusive in application checkbox is enabled.
If enabled, untick it and Save.
Then go to Process Leave, highlight all NoPay, and click Recalculate.
Sync to ESS and get the employee to cancel the leave and reapply in ESS.