The styles are appending numbers after the field values, This must be obvious to you but I do not know why this is happening, you can see in the image numbers appended after the content

Here is the offending code, it is output by wpdatatables in a style tag.

#table_1 > tbody > tr.row-detail ul li.column-OrderNo span.columnValue:after
                                                { content: '0' }
#table_1 > tbody > tr > td.column-Date:after,
                                           
#table_1 > tbody > tr.row-detail ul li.column-Date span.columnValue:after
                                                { content: '1' }

Yes that was it somehow the display text after fields had values added on all the tables.