VCF Automation 9.0.x
This behavior is by design within the VCF Automation modern tenancy model. The Project User role is a low-privilege tier engineered for individual ownership. It restricts deployment management to the specific identity that requested the resource. Standard project membership does not grant cross-user modification rights at this privilege level.
To manage deployments created by other team members within the same project, you must elevate your role assignment.
These roles grant the administrative scope required to override individual ownership boundaries.