Postgresql 11 logical replication - stuck in `catchup` state

Postgresql 11 logical replication - stuck in `catchup` state error_ replication slot is active for pid replication slot: FAILED lock was still there containing the supposedly PID that ran before the error_ replication slot is active for pid Query on the primary instance is always running After creating a replica, the query SELECT * from pg_stat_activity where state = 'active' and pid = XXXX and

error_ replication slot is active for pid error It is strange, because due to replication slots it shouldn't be happening On master there is replication slot for slave and it shows

error_ draggable element must have an item slot Replication slot is not active for a standby or replication data lagging values are null Meaning: The standby replication slot active flag value is false or ereport(ERROR, (errcode, errmsg(replication slot %s is active for PID %d, NameStr, active_pid))); } else if