When using the export "Phone calls from yesterday", the touchpoints file includes a bunch of touch-points with today's date that are from yesterday evening. The export file contains the dates as they are stored in our database, which keeps all dates and times in UTC time. The Group will take the time zone into account when calculating which students should be included in the export, but the export will use the date in the database. As a result, any students who received a touchpoint after 4pm PST will be included in the group on the correct day, but the date in the export file will be the following day.
This has been resolved.