I think I may know what you are referring to. I believe the tab on the outer door is out of adjustment. I have had to readjust mine. Sometimes when you open the outer door the screen grabs and separates because the latch on it doesn't clear the door jamb. And, sometimes when you open the door from the inside the screen doesn't travel with the outer door. On mine, FR set that tab as low as it could go but, you could see that the latch stuck out from the screen door handle/mechanism. I ended up drilling a couple shallow 1/16" holes in the outer door where that elongated slotted tab was positioned. The net effect was to push the screen door handle down further(when both sections are coupled) I only moved those holes about 3/8" further down( about the length of the slot). Now the latch is pretty much recessed when both doors are coupled together. Now the screen door doesn't grab and stays with the outer door.
2016 Flagstaff 27VRL Emerald
2014 GMC 2500HD CC 4X4 6.0L