Unable to view any data under VMI Network screen

We created a custom super user role mimicking 'Vendor Managed Inventory Analyst' standard role with adding two additional privileges i.e. 'Manage VMI Analysts' and 'Manage VMI Network Relationships' in order to view the below tabs for VMI:

1. Overview (VMI)
2. Inventory (VMI)
3. Replenishment Requests

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4. VMI Analysts
5. VMI Network Relationships

Every tab is showing data except for 'VMI Network', even though item-vendor VMI relationship is configured. Could someone help us understand why the VMI Network tab is empty despite having 'Manage VMI Network Relationships' privilege and all the required data access?

The attached screenshot displays all the privileges assigned to this custom role.