Hardstuck on mission

I started playing on first day when it released, i did every mission and on mission “Own the Spot” ( do a 180 spin, flip trick, 150 points) happened nothing when i did it, it shows me that i have done it but no new mission shows, i tried it for like 30 times and still nothing, no youtube turorial helped, please help me, thank you.. btw sorry for my bad english. Im sending video in attachment