2 Processed flags for one message id in SXMB_MONI for Inbound Proxy

Hi Experts,

Client has raised an concern that entries got doubled for a particular file which was processed from FTP to S4 via PI(File to Proxy). I have checked the logs in PI only one entry was there for that particular file. However observed that in S4 SXMB_MONI that particular message took 3 HOURS to get processed, when i expanded that particular message i observed that there were two successfully processed flag for that messages.

It seems message got processed twice in s4, but i am unable to get any logs to support this assumption. Request you kindly help/suggest how to check logs for that particular message id. I have checked trace log but it was not useful.

Client is asking for root cause, any inputs will be highly appreciated. Please refer screenshot for same.