IQ Audio Codec+ No Longer Streams Flac

My IQaudio Codec+ has stopped streaming flac but continues to stream MP3 it's been like this for about a week and I haven't been able to find out the cause. Flac streams appear to start but are silent and usually stop after 16 seconds.

I think it might be related to an LMS nightly update but have tried all types of file type combinations.

Is anyone else using this codec to stream - I think I might be alone.

I'm up to date on LMS 8.0.0 nightlies on my server and pCp 6.1.0 on my "player". edit player/streamer