Ownerless, Risky and Unmanaged agents aren't reflecting in Agent 365 in admin center

1. Ownerless, Risky, and Unmanaged agents are not appearing in Agent 365 Admin Center despite having the required Agent 365 license and appropriate administrative roles. Several agents have no active owner, and I even hard deleted the owner account to simulate an ownerless scenario, but the agents are still not being identified as ownerless.

2. Risky agent classification is also not working as expected. Conditional Access and Microsoft Purview policies have been configured, and the agents have performed activities that should trigger risk indicators, yet no agents are being categorized as risky in Agent 365.

3. All Microsoft-native agents, including Copilot Studio agents, Foundry agents, and Microsoft Copilot agents, are consistently displayed as Managed. Only externally connected agents are shown as Unmanaged. If external agents are correctly identified as unmanaged, why are Microsoft-native agents not being classified as unmanaged when they meet similar conditions?

Please let me know the solution to overcome this issue, Do I need to enable something which I missed or I lack permission.