How can I see audit history of item structure on item master?

Summary:

Following steps were followed:

Set up and Maintenance → Manage Audit Policies → Configure Business Object Attributes for Product Hub → Item Structure Component Attributes were set up.

The Audit Level is set up on Auditing, but when I go to the Item Master → History tab, and click on search, nothing shows up

If I follow the same steps through Tools → Audit report however, I can see the following information:

It seems like the drop down menu fields next to "Show Attribute Details" is not present on the Item Master. Is that the issue? How do we solve for it?

Version (include the version you are using, if applicable):