Experience taking out keder?

Replacing my keder because I have a decent gap in my tent corner. GFC sent me the newer fiberglass keder rods. When trying to take my upper rear old keder out (the green wire) it seems like it’s stuck into the tent fabric. I tried tugging on it both ways as well as pulling on it while pulling on the tent fabric in the opposite direction. Won’t budge. Called GFC and they said to book a service appt. Just wondering if anyone on here has experienced this issue when replacing keder.