Bugfest. Green success toast is missing when saving an Instance

Overview: When testing T664415 is was noticed that a green success toast is missing when saving a new instance record, or updating an exiting instance record. This was found in https://bugfest-iris.folio.ebsco.com/, and also in the FOLIO Snapshot environment.

Steps to Reproduce:

1. Log into FOLIO snapshot as diku_admin
2. Go to Inventory, click the Actions menu, and the + New button
3. Create a new instance record
4. Click Save and close

Expected Results: The record is save and a green success toast will display saying: The instance - HRID [the HRID number] has been successfully saved."

Actual Results: The record is saved but no green success toast is showing.

Additional Information: This bug was found when testing T664415 in Bugfest Iris. Similar when doing an update of an exiting record, then the green success toast is also missing.

URL: https://bugfest-iris.folio.ebsco.com/inventory/view/0bcff3e4-f667-478b-a529-e9b8ad56fa5d?filters=source.FOLIO&sort=title.
Interested parties: