Data quantity statistic calculations are sometimes too low or can be reset (affects dashboard, tableau, data APIs)

[biblicabeebli]

I just ran data processing easy_run - which is actually just part of the normal data processing pipeline, cool - on a test participant, and the statistics on the current day of their dashboard changed substantially and got smaller.

Doesn't look like a bug in data processing, that has been running fine and is unchanged.
It should not be possible for it to have been an upload bug, I had been checking that uploading was working for at least half an hour with a then-proven-functional version of the app literally sitting in front of me.

[biblicabeebli]

@hydawo I have confirmed this. For unknown reasons data processing will sometimes screw up this value.

I don't know the underlying cause, but I can cut out the existing implementation and do a better one.

There is no way to identify how wrong the data is, we are going to need to .... reanalyze ... data things. Saw-rry.

At least it should always be displayed as too low. I will confirm that.