Why are email newsletters being duplicated after editing them?

I am still having some problems with e-newsletter. I use the latest Firefox browser. Each time I "edit" a newsletter that has not been sent it duplicates it, which makes no sense as to why it would be programmed to do that. Even Must be a bug? I've attached a screen shot so you can see. I think you have a GREAT thing going here with this plugin, but it is needing some serious help here :slight_smile: I've attached a screen shot so you can see what it is doing. Thank you for helping. Gary