pipeline {
 agent any
 stages {
  stage('Run Tests') {
   steps {
    bat 'exit 1'
   }
  }
  stage('Deploy') {
   parallel {
    stage('Dev') {
     when {
      branch 'master'
     }
     steps {
      echo 'hello master'
     }
    }
    stage('QA') {
     steps {
      echo 'hello stable'
     }
    }
   }
  }
 }
}

First time build. Skipping changelog.
[Pipeline] }
[Pipeline] // stage
[Pipeline] withEnv
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Run Tests)
[Pipeline] bat
[parallel-stage-complete-bug-JNC4NY4S375GSWLOMCSNQAMH4OIZKQT7UCEAS4OYPXLQVHI6A3XA] Running batch script

C:\...>exit 1 
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (Deploy)
Stage 'Deploy' skipped due to earlier failure(s)
[Pipeline] parallel
[Pipeline] [Dev] { (Branch: Dev)
[Pipeline] [QA] { (Branch: QA)
[Pipeline] [Dev] stage
[Pipeline] [Dev] { (Dev)
[Pipeline] [QA] stage
[Pipeline] [QA] { (QA)
Stage 'Dev' skipped due to earlier failure(s)
Stage 'QA' skipped due to earlier failure(s)
[Pipeline] [Dev] }
[Pipeline] [QA] }
[Pipeline] [Dev] // stage
[Pipeline] [QA] // stage
[Pipeline] [Dev] }
[Pipeline] [QA] }
[Pipeline] // parallel
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: script returned exit code 1
Finished: FAILURE