I have intelligent groups that lists all my documents in a database based on creation dates like “today” and “yesterday”. As I am a mobile user I usually just put my MacBook to standby mode and open it the next day.
Unfortunately DT does not recognise a new day and still shows documents created yesterday in the today view. Closing DT and re-open it fixes it. Nevertheless the right behaviour should be that the software regularly checks the right date updates the intelligent groups IMHO.
Hope it helps.