Radio tables creates a latex table including an enumerate environment, which will not compile. This occurs if a numeric entry within the table ends in a period. The problem does not occur without the period. It seems possible that this is working as designed, but it is sure a surprise in context.
Using org 8.2.4 (8/18/2014), here is a complete example: <!-- BEGIN RECEIVE ORGTBL test --> <!-- END RECEIVE ORGTBL test --> <!-- #+ORGTBL: SEND test orgtbl-to-latex | 0. | --> C-c C-c on the SEND line produces this: <!-- BEGIN RECEIVE ORGTBL test --> \begin{tabular}{r} \begin{enumerate} \item \end{enumerate} \\ \end{tabular} <!-- END RECEIVE ORGTBL test --> <!-- #+ORGTBL: SEND test orgtbl-to-latex | 0. | -->