Presence of content control that froze the document during character style macro execution in Word 2007, does not freeze in Word 2013.
Hidden text are removed while using file cleanup style macro, but the hidden text in field codes were enabled as live text after character style macro is executed.
Index markers present in the document are not removed and throws a run-time error 5891 while the character style macro is executed.
Footnote/Endnote. If the carriage return has formatting, the following text content with the same formatting is skipped while the character style is applied.