Note the heading "Implementation" is an extra cell to the right. The cell to its left contains a category meta tag which may be the cause. Renders "correctly" in PHP.
Separately a good fix would be to edit the module backing the TNT template to generate the category after the table. Presumably, it is generating the category inline as it is processing the template parameters. But, given that the module is written in Lua, it could buffer the errors and generate the tracking category *after* the table.