Hi ZoeO1
Any days that are actioned by or entered into are treated as "worked" days by the MYOB Team system. As such, if an employee has entered a leave period that includes a weekend that would be treated as a worked day for them. For example, if I took Wednesday to Wednesday off it would be 8 days (including the weekend), not the 6 days excluding the weekend.
To avoid this occurring you want to enter leave for the work days of the employee i.e. if they have taken leave for Wednesday to Wednesday you want to enter two requests, Wednesday to Friday and then Monday to Wednesday.