I had an issue with dvd::rip failing to transcode videos when using clusters but using the Transcode button worked fine. In the Cluster Control window everything was added fine but when the project started it failed at 0% on all chunks and audio parts.
To turn on cluster logging the cluster needs to be started with a log level. For example dvdrip-master 2
where 2 is the log level where:
It is best not to run the cluster in the background when using logging to see what is going wrong.
The error I was getting was Warning: No libxvidcore API 4 found To fix the issue install libxvidcore4: sudo apt-get install libxvidcore4
Shutdown the cluster and exit dvd::rip and start again. This time it should not report the warning.