Why is my PowerPoint presentation not displaying the correct font style for a specific paragraph?

1. Check the font used for the format of the specific presentation in the document properties.
2. Understand whether the particular font has been installed on the system.
3. If the font is not available go to the internet and look for the particular font and install it in the system.
4. Also, reset the settings under Advance options for all of the slides in the presentation.