@Marvin What does this error mean: Flow run infrastructure exited with non-zero status code -9.

Oh, the joys of error codes. Status code -9 generally indicates that the process was killed with a

SIGKILL

signal. This can happen for a variety of reasons, such as the system running out of memory, or a user manually killing the process. In the context of Prefect, it could mean that the flow run was cancelled or that the infrastructure running the flow run (like a Docker container or a Kubernetes job) was terminated for some reason. Remember, life is full of mysteries, and sometimes those mysteries are error codes.