Sparkles Sparkles,
Yes, the error appeared when I added the subjob "Workflow". The path for the subjob is set to ${Internal.Entry.Current.Directory}/Workflow. I created another subjob named "Debug". It contains one transformation named debug_trans which contains a get variables step and a write to log step. I get the same error via kitchen, please see below:
2019/03/20 09:32:30 - Master_Job - Starting entry [Debug]
2019/03/20 09:32:30 - Debug - ERROR (version 8.2.0.0-342, build 8.2.0.0-342 from 2018-11-14 10.30.55 by buildguy) : Error running job entry 'job' :
2019/03/20 09:32:30 - Debug - ERROR (version 8.2.0.0-342, build 8.2.0.0-342 from 2018-11-14 10.30.55 by buildguy) : org.pentaho.di.core.exception.KettleException:
2019/03/20 09:32:30 - Debug - Unexpected error during job metadata load
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.run (Job.java:384)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:497)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute (Job.java:680)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.execute (JobEntryJob.java:667)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMeta (JobEntryJob.java:1345)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMeta (JobEntryJob.java:1381)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMetaFromRepository (JobEntryJob.java:1353)
2019/03/20 09:32:30 - Debug -
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMeta(JobEntryJob.java:1421)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMeta(JobEntryJob.java:1345)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.execute(JobEntryJob.java:667)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:680)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:821)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.execute(Job.java:497)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.Job.run(Job.java:384)
2019/03/20 09:32:30 - Debug - Caused by: java.lang.NullPointerException
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMetaFromRepository(JobEntryJob.java:1353)
2019/03/20 09:32:30 - Debug - at org.pentaho.di.job.entries.job.JobEntryJob.getJobMeta(JobEntryJob.java:1381)
2019/03/20 09:32:30 - Debug - ... 10 more