If you set Calculation mode for your project to Manual , the successor task will not move. This means that task 14 is a predecessor of this task, with a finish-to-start dependency and a three-day lag time. Earlier versions of Microsoft Project do not have this option. No jargon.
 
 

– Microsoft project 2016 predecessors not working free

 
Thanks Trevor for your reply. Yes No. In this article. I pressed F9 after marking task as complete but no updates to successive tasks.

Microsoft project 2016 predecessors not working free. Tasks don’t schedule as expected in Microsoft Project

 
 
The more you tell us the more we can help. If there is more than one predecessor, they are all listed and separated by the list-separator character, which is typically the comma or semicolon.