My 945 gave me no credit for a 30 mile ride with 3000' of climbing. It recorded my heart rate just fine, which spent significant time in all zones above warm up, yet the aerobic/anaerobic//training effect was 0. This has happened before on some 20+ mi hikes, but I just chalked that up to the fact that the hikes were long but not hard. This tho was definitely challenging and it frustrates me that the watch gave me no credit for it. Any ideas?