I have a 2018 Stampede I bough new in Oct. 2018. After 100 miles I’m having an issue shifting gears once I ride long enough for everything to warm up. It’s a grinding noise and difficult to change gears. I dropped off at the dealer who says 30 days wait time which is not acceptable. I’m thinking the shift linkage needs adjusting but the owner manual does not provide any details other than saying contact a dealer. Anyone have this problem?