[Graham68]

Since upgrading to Kodi 17.6 (2:17.6+git20171114.2125-final-0xenial) I've noticed that a number of FLAC audio files are failing to play when they have previously played just fine.  When one of the affected files is selected from the library the player pauses for a number of seconds and then eventually throws an error and moves on to the next song in the list.

If I try to play the affected songs via the Files list rather than the library then they play perfectly ok.

Having looked at the logs it seems as though the player is incorrectly identifying the affected FLAC files as MP3s.  I have some debug logs showing good and bad files but the highlights look to be:

DEBUG: Loading settings for musicdb://artists/837/387/4887.flac?albumartistsonly=false&albumid=387&artistid=837
DEBUG: CPlayerCoreFactory::GetPlayers(musicdb://artists/837/387/4887.flac?albumartistsonly=false&albumid=387&artistid=837)
DEBUG: Open - probing detected format [mp3]
DEBUG: Open - setting usetoc to 0 for accurate VBR MP3 seek
DEBUG: Open - avformat_find_stream_info starting
ERROR: ffmpeg[7F073F629980]: [mp3] Header missing
ERROR: Previous line repeats 788 times.
DEBUG: ffmpeg[7F073F629980]: [mp3] Stream #1: not enough frames to estimate rate; consider increasing probesize
DEBUG: ffmpeg[7F073F629980]: [mp3] Could not find codec parameters for stream 0 (Audio: mp3, 0 channels, s16p): unspecified frame size
DEBUG: ffmpeg[7F073F629980]: [mp3] Consider increasing the value for the 'analyzeduration' and 'probesize' options
DEBUG: FactoryCodec - Audio: passthrough - Opening
DEBUG: FactoryCodec - Audio: passthrough - Failed