Maybe it's not a Moodle issue but some scorms store extra information at cmi.suspend_data as pseudo-html tags. If you check the scorm attempt details, Moodle shows the information without problem but if you try to get the same information through user profile >> activity report >> complete report happens the following (see attached image)
A sample of the information stored at cmi.suspend_data:
<SCO><visits>03</visits><objects/><objectives><o id=\"total\" desc=\"This is automatically created module objective.\" module=\"yes\" cs=\"c\" ss=\"u\" max=\"100\" min=\"0\" raw=\"100\" scaled=\"1\"><s id=\"\" raw=\"100\"/></o></objectives><interactions/></SCO>
As you can see, the problem is that there's a s tag which has not closing tag, so the browser represents the rest of the lines as strikethrough text.
The problem can be fixed modifiying mod/scorm/lib.php, function scorm_user_complete() , line 335
$report .= '<li>'.$element.' => '.$value.'</li>';
$report .= '<li>'.$element.' => '.s($value).'</li>';
That prevents the browser to translate the possible html code stored in extra scorm fields.