SLA top menu permissions such as SLA Report, SLA Configuration etc. does not work when they set to project roles. Users are not able to see SLA configuration pages even they have selected role in some projects.
Project roles for top menu permissions only check global members of those roles. Since it is not feasible to check role for each project in the system.
Note: This limitation applies only to Top Menu Permissions all other permissions perform project level project role permission controls since they are issue based permissions.
We strongly recommend using groups to manage top menu Permissions. If you would like to use project roles for Top Menu permissions you can add your user as global members to those roles.