Temples and Towers - repeatedly sent up Rooftop KOM in infernal loop!

Hi all - just rode Temple and Towers in MI for the first time. Immediately knew something was wrong as my avatar was cutting corners, riding through street furniture and buildings etc. The Rooftop KOM was the first climb however after the descent, instead of taking me out of Neokyo - I ended up at the foot of the climb again. I hadn’t checked the route prior so thought maybe you do it twice (!), so up again, descended. REPEAT. back at the foot of it and not exiting Neokyo. For reference am on ATV, first time riding this route and have never had a similar issue before. Anyone else caught in a Rooftop KOM groundhog ride?!