I did about 9000 steps yesterday before first sync for the day then found that I'd gotten to about 13,000 by evenning meal time. So I decided to go out and get my first ever 20000-step day.
Today when I synced, the 10000 steps from today showed up in Garmin Connect but it still seems to insist yesterday's figure is the 9000 one. This despite the fact I actually managed to get a smidgeon over 20000 last night.
Why is GC reflecting today's figures accurately but not the updated figures from yesterday?