This is a minor inconvenience, but perhaps easy for a developer to fix… The date filter on the stats screen seems buggy. But this seems to correlate with when I practice, ie. time logged late in USA evening - I think after midnight UTC/GMT - seems to confuse the ‘show me one date’ filter on the Stats screen. But I have seen instances e.g. Feb 20, 21 when I practiced during the day when it shows similar/other behavior.
For example, here is my practice time when I filter by three days: