When reply to a ticket, and insert a inline image, it appear well on osticket.
But in the answer email sended to the client, the inline image appears replicated, one time on the right position and another after the signature.
Inline image replicated when reply to a ticket
That is your mail client showing the inline images as attachments. There is nothing you can do unless your mail client has a setting to configure this.
Cheers.
I've never experienced this.