Signature graphic adding as a jpeg attachment

We are running GW Client 14.2.1 B124014 and having issues with a jpeg in the signature getting attached to the email as a jpeg attachment. If there is a reply to the email and it goes back and forth 4-5 times there are 4-5 attachments in addition to any existing attachments to the email. This can get very confusing to the user trying to sort the attachments they want to see from the extraneous signature attachments. This behavior started with 14.2.0. Any ideas on how to prevent this?
Thanks, Rod Fraser