Did you by any chance rearrange the colums in the source QlikView table after creating this template? If so, I suggest that you save the QVW, delete all the smart tags in the report template, remove the table from the list of objects in the template editor, refresh the list of objects (see image) before bringing the table back to the list and then add the field smart tags to the template.
If that does not work please post a sample project that demonstrates this behavior here or open a case with Tech. Support.
HTH - Daniel.