Conversion failing after upgrade from release 4 to 8

Upgraded, but conversions are now failing. Log attached, any help appreciated. Thanks.Big Brother Celebrity Edition S01E04.mkv-No Commercials-2018-02-11T21-03-06.4494540-08-00.log (4.3 MB)

Your original MKV files has lots of errors in it which is causing the issue.

2018-02-11T21:18:58 MCEBuddy.AppWrapper.FFmpeg --> [aac @ 0000016cc25dd0e0] Sample rate index in program config element does not match the sample rate index configured by the container.
2018-02-11T21:18:58 MCEBuddy.AppWrapper.FFmpeg --> [mpegts @ 0000016cc25daf60] decoding for stream 1 failed
2018-02-11T21:18:59 MCEBuddy.AppWrapper.FFmpeg --> [mpegts @ 0000016cc25daf60] Could not find codec parameters for stream 1 (Audio: aac (LC) ([15][0][0][0] / 0x000F), 0 channels, fltp, 321 kb/s): unspecified sample rate

Did you record this on Emby? If so check out this post, you need to disable a setting:

The other option would to try to check the option for “Skip remuxing” in the Expert Settings of the Conversion Task. That may solve the issue because it’ll skip a few steps, however the long term solution would be to find out why your recording is the creating non compliant video