Please keep in mind that Special Teams yards and touchdowns are awarded based on your League's Scoring Rules.  If your League Rules do not allow for players to get awarded these points, the system will not give those players any points.  Make sure you check your League's Scoring Rules, if it is set as "Same Scoring For Each Position" the individual players will not get those points.  If it is set as "Customize Scoring By Position", then the players could get awarded those points depending on what rules are specified.