Why are the b/m/d/'s crossed out on my family group sheet

What do I need to change in my family group sheet so that the births/marriages/deaths and names of father and mother are not crossed out? What has caused this problem?

In the FGS Settings click on Styles, Labels (FGS), Font. When it opens up you will see the ā€œSā€ on the BIUS row highlighted. Click on it to remove the strikethrough on that label.