After the update:
My endurance score dropped sharply.It was trending higher, and dropped 176 overnight.
My predicted rate times are much longer (slower pace), my easy run pace is much faster.
Currently my easy run pace is faster than my half-marathon pace. Yesterday my easy pace was 55 seconds a mile slower than half-marathon pace. Today my easy pace 17 seconds faster than half-marathon pace.
My garmin didn't record any activities and yet somehow my recommended easy run pace dropped by 45 seconds since yesterday.
Before yesterday's update the predicted race times and run paces seemed quite accurate.