Why can't I see the list of Suppliers when creating Warranty Coverages?

Summary:

I am trying to create Warranty Coverages, but I can't see the list of Suppliers to associate as the Warranty Provider. I have the Product Data Steward Role with the correct Inventory Org access and the Supplier Administrator Role with the correct Business Unit access.

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Version (include the version you are using, if applicable): 23C

Code Snippet (add any code snippets that support your topic, if applicable):