Producer use the same Key(string) result in multiple paritition

In orede to make  record  in order，we use the same key：event#Collector-2021-01-01-001#Probe-0001#1067267613#1002。In some situation（maybe the Kafka service has been restarted during producing）, we find the same key records sent to  partition 0 and 4. 

offset: 7422, key: event#Collector-2021-01-01-001#Probe-0001#1067267613#1002, partition: 0, topic: IES.tunnel.event.1002, timestamp: 1710483530474

offset: 7433, key: event#Collector-2021-01-01-001#Probe-0001#1067267613#1002, partition: 4, topic: IES.tunnel.event.1002, timestamp: 1710483516370