Form "on save" behavior not predictable

I’ve got one form that is opening the record on save: https://app.mintconstruction.com/tasks/new

Another that returns to the main collection page: https://app.mintconstruction.com/employee-schedule/new

Both are set to not customize the page shown on save so my thinking is they should return to the page where the user clicked the button, is that correct? The same forms seem to behave unpredictably depending on where they are initiated from.