I received this error while setting up the engine.
[Jazz build engine] CRRTC3527E: Operation blocked by process: 'Control The Build Lifecycle' failed. Permission denied. You don't have permission to perform the following actions:
Retrieve the Next Build Request (getNextRequest)
The solution is to add the Jazz user ID to your project. Open the UI and navigate to the project configuration. Add your build user ID as a user in the project. It does not have to be an administrator. The build ID MUST be assigned a build license not a developer or contributor license. If you are using RTC Express-C, there is only one build license you can issue.