Error when Create PO Line From Supplier Item Catalog after upgarding to 12.1.3

Hi-

STEPS

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The issue can be reproduced at will with the following steps:

1. Responsibility: Purchasing Super User

2. Navigation > Purchase Orders > Purchase Orders

3. Enter PO header supplier, site, etc.

4. Click in Lines Region

5. Click Catalog button

6. Query for Prior Purchases

7. Select line and return to PO lines region

8. Update quantity

9.Enter Promised date and need by date

10. Save record

Result:

Nothing is saved and you have to change the po number manually in order to save the changes

Workarounds figured:

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1- Save the PO header before going down to the catalog

2- click on catalog button directly after finishing PO header canvas    [Don't Click on lines block first]