Are you getting data for days after that period? I’m not getting anything added to BM since the problem started on July 22.
I just tried, but… Beeminder ignored it? I de-authorized Beeminder at my Garmin Connect account, but when I refreshed my BM goal it didn’t give a peep. I had expected BM to complain that it no longer had access and to prompt me to re-enter. So looks like now my BM goal is not even connected to Garmin, but it still tells me everything’s business as usual.
So the one thing is obviously that I need to get BM reconnected to my Garmin account, but the other thing is that maybe this is some kind of clue to why all the blank stares from the Garmin API…
EDIT: BM just prompted me now. I re-authorized, and still not getting any post-July 22 data from Garmin.