Manual View is different from Distributive View in Forecasting

User is able to see all employees in Forecasting > Distributive View, but can only see a few in Manual View. Why is that?

The Manual View takes only the starting date of task allocation into consideration and distributes all allocations from the start date onwards. The Distributive View takes both the start and end dates into consideration and distributes the assigned tasks equally into weekly or monthly segments. Thus, all allocations between the specified dates appear and there are different results shown in each view.