Why order is not created in maintenance plan?

Hi PM Guru,

I have a question on why there is no order generated even though it is overdue. .

From below screenshot captured today, you can see the plan has been started.

Here is the scheduling parameter.

Additionally, IP30 is also implemeted to cover the scheduling.

The Work order has not been generated as schedule,if I execute IP10,it works.

Please help me diagonose.

Thank you,

Sally