HtmlFormatProvider import error

Hello,

I want to create a RadDocument based on some text, but this action failes.
The following text is a part of the total string, but in this text the error occurs.

 "<table width=\"280\" border=\"0\" alt=\"logo-vend\" style=\"font-size:12px\">
\r\n<tbody>
\r\n<tr>
\r\n<td valign=\"top\" style=\"padding:0px;width:auto\"></td>\r\n</tr>\r\n</tbody>\r\n</table>"

When the text "width:auto" is removed, the import method succeeds.

When in the complete string the text "width:auto" is removed, the import methods succeeds, but the TxtFormatProvider.Export() method fails.

Thanks in advance.