t3rse can you take a picture of this "fold" it's hard to figure out what you are describing.
I actually do have a picture that I sent to the vendor. Sorry about the lighting...my phone was croaking and I had to use a flashlight for illumination. The valve delaminated at this fold on the bladder.
My other kite did this after time...the valve that did this wasn't like this on install. On this one, I was in a hurry so who knows....