I'm encountering an issue with a job that's repeatedly restarting due to an "Unrecognized Property Exception." I've modified the code to address this and updated the old table schema. Now, I need to stop the job in Kubernetes from a specific savepoint so it can resume from that point without losing any data. However, I'm facing a "Checkpoint Exception" error stating that "not all required tasks are running." Could someone help me resolve this?