Which version of Articque MAP for QlikView are you using ?
Are you on desktop or server ?
If you are on desktop which version of Internet Explorer are you using ?
If you are on server which browser (and version) are you using ?
The problem could come from your comment. Could you show us the configuration of the layer that you want to display ?
I just test the comment/export with the lastest version 1.5.0 and everything seems fine. (See example below)
And the result of the export