Please fix My character duplicated

My character duplicated.
Please help me.

산희 (OLD)
https://ko.warcraftlogs.com/character/id/77595266

산희(New) <<< Real My character
https://ko.warcraftlogs.com/character/id/86701264

Thank You.

Same is happening to me. My character is Strifelock on tarren mill, but logs from all my normal runs up until heroic 3rd boss got aggregated to Strifelock Kazzak