[$coveredLevels.Asset Item Name] attribute in invoice text returns item description and not item#

We have configured subscription profile with invoice text which contains attribute [$coveredLevels.Asset Item Name]

As per the attribute says it should add item name in the invoice text in bill lines and thus in AR invoice.

However, we have noticed that the invoice has item description in invoice text and not item name as expected.

What am I missing in this configuration? How do I avoid description and get item number?

Any help is appreciated.