The times between Database and Application are mismatched by more than 15 sec.
This can be seen in Administration - Health Report - Database
Parameter Application and Database Timezone Match
Ensure that the time/date between Application server and Database server is the same up to the second. This is a requirement for Data Warehouse to work in order to match the dates between database and application.
Once the times are synced up, run Load Data Warehouse - Full Load and check the data again.
Note: If you are using a time sync service to sync the server to the correct time, ensure the service is up and running.
More detail and discussion in Communities thread: