Alta behaving weirdly

[phs3]

Suddenly today my Alta:

1) Is showing the battery status as the first item when tapped (it's not set that way, and I've tinkered with changing the order of the display and resynched, no change)

2) Is showing 100% battery on the device, but only 75% (more likely) in the app

3) When I sync, it resets active minutes to 0 every time: I just walked for 70 minutes, which should have registered as 70 active, and every time I synched while walking it reset, and is now also showing 0 active; drilling down in the app shows "No measurements" for today, despite 13K+ steps

4) Is is, however, showing the total steps for today as correct

I've tinkered with settings, rebooted the Alta, etc. Any other suggestions, or is it replacement time?

[Get2run]

Mine is doing the same thing.  When looking at the activity log, today's walk activity isn't showing a step count and only 1 calorie/minute burned as opposed to the 4 or 5 calories/minute showing for similar walks from the last few days. 

[phs3]

Is it also showing 100% battery, and showing battery first when you tap it? That would make me optimistic that it's a software issue with the app.

[phs3]

Well, this morning it was stone dead, despite having been at ~75% the day before. Now it's charging, taking the charge, and syncing. I did order a replacement yesterday, due tomorrow, so today will likely be the determining factor in whether I use that new one or just give up!