history not tracking properly

my logger has suddenly stopped associating pomodoros with the right day, and if mis-tracking time spent on tasks! the main screen is fine and the right number of red circles appear for the day, but in the history tab they are usually attributed to the day before, or sometimes the right day, or sometimes not recorded at all.

i'm using macOS Monterey 12.0.1, pomodoro v0.6.3

thanks for your help!