I rode “Out and Back” and haven’t received credit for it. The course is 24.8 miles. I did 25 and never had the popup for congratulating me on doing it.
I don’t know this route for certain but it could be a long lead in:
… says it is a 2.5km lead in, so is it possible you just didn’t get to the finish? (And yes, it is super annoying there’s no progress indicator!)