pg_cron not running scheduled tasks

Recently had to terminate an SQL query "update cron.job_run_details" that was running indefintely on our RDS db, using SELECT pg_terminate_backend(<jobid>);

Since then, no cron jobs are running. I've taken a snapshot and restored a test instance, in which ive tried adding new cron jobs (such as vacuums every minute on a table) and it still does not work. I've rebooted the test instance to no effect. I wondering if the pg_chron extension works off a daemon and it I unwillingly terminated it and have no idea how to reboot it from RDS. Has anyone had similar issues?