Issue with Exporting - Duplicate of window?

Not sure how this happened or why but I noticed it when I tried exporting a window from a dev server to the production server and nothing changed. When I go to export notice on the right I have two windows “List Quotes”, but on the Object browser I only have one.

Hovering over them they say “fpmi / window / Listquote (6577)” for the first one and “fpmi / window / ListQuotes (6102)” for the second one.

Restarting the designer did nothing to change this.

Any idea of how this happened and what the fix is?