have a very weird problem. Activities that are generated by several smart tasks have just disappeared. All filters are correct and it only affects 1 user. I have checked cleared too and they are not showing there either! It seems to have been since January 6th for some reason. I noticed the Smart Task Scheduler was not running which is now started. Any help would be appreciated as about 2 weeks ago they were all there!
It is an odd problem that you have listed, just in case they were synced with Outlook/Google have you checked the option to 'Show Tasks from Other Applications'? if this is not what has happened do you have a backup of the database or a remote database which would still have the activities?
No Outlook integration apart from email