Hi Rusty, got the same issue with my sweet afghan FV. You have to check carefully the entire branch, from top to the base to looking for rot spots or breaks. If the entire stem is ok and if your girl is planted directly in the soil (like mines) another possibility is a root problem. This fact could be caused by several reasons (incorrect watering, soil critters, competitive roots, and so on...) and IMO you can't do anything. Whatever the cause most likely this side of the plant will be less dense but will ripen sooner. Nice garden