We got it working by configuring a new role in XDR RBAC
https://learn.microsoft.com/en-us/defender-xdr/create-custom-rbac-roles
then activating the unified RBAC
https://learn.microsoft.com/en-us/defender-xdr/activate-defender-rbac
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Up until last week we were able to check out the Security Administrator role in order to take action on a reported email in the defender action center. Now it is greyed out after we check out the role and we are unable to approve or reject actions. For example there is an action to soft delete the emails. Normally i'd go in and approve them with the Security administrator role, but now it is greyed out. We have cleared sessions and restarted browsers etc. We can confirm we have the role, just the permissions are not working the same.
We got it working by configuring a new role in XDR RBAC
https://learn.microsoft.com/en-us/defender-xdr/create-custom-rbac-roles
then activating the unified RBAC
https://learn.microsoft.com/en-us/defender-xdr/activate-defender-rbac
I'm not happy with how Microsoft handled this specific rights assignment and how the explanation found in the link below is written, but this is how we fixed it:
Explanation: https://learn.microsoft.com/en-us/defender-xdr/m365d-action-center
In the Entra ID portal:
In the Security Cental portal:
Remarq: According to this information: https://learn.microsoft.com/en-us/defender-office-365/mdo-portal-permissions
If you activate Defender XDR RBAC for Email & collaboration, the permissions page at https://security.microsoft.com/emailandcollabpermissions is no longer available in the Defender portal, so you need to ensure that you configure or import your roles before you activate Defender XDR Unified RBAC.
(or just disable RBAC by turning of the workflows (slider button to 'off')