We are experiencing an issue when selecting items from the Purchase dropdown menu. It's happening on both our TEST (v9235) and PROD (v9217) instances with two separate databases.

When a new PO is created and the vendor and product type are selected, the user is unable to select/view items from the product list. 

Two different scenarios occur:

- the Product list will not be filtered by Product Type and the user is able to view all items from the vendor. This is not ideal since some vendors have hundreds of items to scroll through. If the user then selects a different Product Type from the vendor, the filter works correctly.

- no items are listed under Product list and the users needs to refresh the page and restart the new PO process

Our administrator has already rebooted the server and renamed the extracted folder. Also the same issue is happening with Admin and non Admin accounts in two different server instances. 

I attached a support file from our PROD environment.