StandardERP 22-04-16 Build 85430339 Multi-User, Canadian version
Also tested on single user Mac Canadian version, using Sample Database

Add an Item, 10108, Item Type: Inventory

Create a Purchase Order, for qty 10 of that Item, and OK the PO
Item Status ribbon correctly shows P. Order Qty of 10.
If you click on the P. Order button in the Item Status ribbon, it shows a blank report despite the OK'ed Purchase Order.

If you run the Outstanding Purchase Orders report from Reports, it still shows 0.