@Aitamrane looking more closely at the screenshots you provided, both of your issues occurred immediately after the connection to the broker got re-established. There was a disconnect (CONNECTING) and then a reconnect (CONNECTED) in the logs. And quite possibly when duplicate messages or ACKs were received b/c the previous ACK had been lost due to network disconnection.
Are you specifically doing testing around message/dupe handling when encountering broker connectivity issues?