Encoding errors with flac 0.6 with -p

I am encoding a wav file using flac -8 -p -V Track01.wav Track01.flc (is
there a correct file extension?) in FreeBSD. I get the following error
which does not occur when I use the default options with and without -p.

ERROR: verification decoder returned error
0:FLAC__STREAM_DECODER_ERROR_LOST_SYNC

ERROR: mismatch in decoded data, verify FAILED!
Please submit a bug report to
http://sourceforge.net/bugs/?func=addbug&group_id=13478
ERROR during encoding, state = 14:FLAC__ENCODER_FATAL_ERROR_WHILE_WRITING

Verify FAILED! Do not use Track01.flc

When I encode with different options (-p -V) it seems to encode fine but
when I decode the file the md5 sum of the wav is different.