I love the new bag and get lots of compliments paired with the USA headcover and Vokey alignment sticks. The bag is stored in the club’s bag room and I use a pull cart over 50% of the time... recently a brown ring appeared on the white panel ball pocket. I thought it was dirt or sand and used Jason Markk shoe care (totally safe and many people use on Jordans) and I can’t get the stain off. Is it flaw in the white panel? Should I send the panel back through my Pro Shop? Thanks.