Were any of the ascents back to back? I ask because if you turn at the bottom before the UI changes from the “climb” one back to normal, the second ascent doesn’t necessarily (or didn’t at least) get counted separately. I’ve had that happen to me in the past (and I didn’t get a prize wheel at the top, as well as it not counting).
Admittedly, that was 7 years ago, so maybe it counts from the KOM marker these days.