Depending on your theme, lists of product short description may appear without any type as in “list-style: none”. This happens when the default list style is defined ‘none’. Make sure you define list styles separately for product short description, category description or other areas for such styles as a disc or an image.
The fix will look like this:
.short-description ul li { list-style-type: disc; list-style-position: inside; }
.short-description ul li { list-style-type: disc; list-style-position: inside; }