STEPS TO REPRODUCE:
1. Create a Resource and Assign him the Role "Developer".
2. Add this resource to a Project. Under Project Role assign him the role as "Architect".
3. Assign the same resource to a Task on the project and add the allocations.
4. Run the Load Datawarehouse Job.
5. Run the Load Datawarehouse Access Rights Job.
6. Navigate to Home - > Advanced Reporting -> Reports -> Capacity vs Demand by Resource report.
7. In the filters click on "Populate Resource Role" and select the role as "Architect".
Release : 16.1.0
This is being investigated by engineering as DE67315