I have a workbench which contains a WorkspaceRunner that calls a child workspace. When I set the WorkspaceRunner to wait until the job is complete, it calls the child workspace every time. Everything runs smoothly.
But when I set the WorkspaceRunner to run the child workspace multiple processes of the child workspace at the same time, it just briefly calls the child workspace without starting it. Nothing happens. There is no error and I am not above the maximum of the FME licenses. I am using FME 2019.
Any idea what could cause this behavior?