The extension checks in with Opervia once a minute. That check-in could stop happening while you moved between tabs and applications - and the more actively you worked, the more likely it was to stall. Opervia saw the silence and recorded those minutes as time away, so a busy morning could show several short absences that never happened.

Check-ins are now reliable, and those phantom gaps should stop appearing on your attendance. The extension also reports immediately when you step away or come back, rather than waiting for its next check-in.