community site reply section in response to names changes

Question

Hi all,

 

one of my X1 user posted a post in sharepoint community site and X2 user replied to it and now the issuee is that when X3 user is trying to reply to the reply of X2 user in reply section we have option as IN Responce to.

where it should show In Responce to X2 but it is showing In responce to X4 which mean it is showing extra uses in place of X2 user when X3 replied to X2 reply.

 

can any fix this?