Fec issues...

Hi all, so I am trying to get the convolutional encoder from gr-fec to work, but I seem to be missing something as I am having issues... 

Specifically I am looking at cc encoder/decoder definition and fec extended encoder/decoder.

However when I try the example fecapi_cc_decoders the output of encoding seems wrong... And after decoding does not match with the original bitstream.

Any thoughts on what I'm missing?

Thanks, 

Nick