Pipeline end without finish the entire pipeline [closed] - jenkins

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I'm having some issues with a Jenkins Pipeline, the build starts and does some steps but then it ends before finish all the steps and doesn't show any error. I have a timeout of 1 hour, but it "ends" at 15 min, sometimes at 8 min. This is showed in Image 1. Sometimes it finishes and shows the entire "normal output" (....Finished: SUCCESS)
I'm Using 3 functions that do the same (I describe just 1):
Select a number of Old Build and delete it if is more older than X days. This is done for SUCCESS, FAILURE and UNSTABLE builds.
The thing is stucking (or Finish) without executing all steps, not for timeout.in some part without any output of Fail or Error. Most of time stuck in SUCCESS function (maybe because i have too much SUCCESS in compared to others).
I don't have enough experience with NonCPS functions and that can be the problem.
Inside the code I'm executing:
#NonCPS
def Funcion_SUCCESS(){
def TOTAL= Jenkins.instance.allItems.findAll() {
it instanceof Job && it.fullName.matches(jobNamePattern)
}
def date_end = new Date( TIME_end ).toString()
def date_start = new Date( TIME_start ).toString()
println(BBLACK+"From " + date_start + " to "+ date_end +NC+"\n")
TOTAL.each { job ->
def builds = []
delete_Items = 0
builds= (job.getBuilds().byTimestamp(TIME_start,TIME_end))
if(!builds.isEmpty())
{
//println ("Builds candidates to Delete for SUCCESS: "+ builds.number)
builds.each {def build ->
if(build.result == hudson.model.Result.SUCCESS && !build.isKeepLog())
{
build.delete()
delete_Items = delete_Items +1
}
}
if(delete_Items > 0){
println(BLUE+delete_Items.toString()+" Builds deleted from "+ job.fullName + " Job"+NC)
}
}
#NonCPS
def Funcion_UNSTABLE(){ Script to detect UNSTABLE jobs ..}
#NonCPS
def Funcion_FAIL(){ Script to detect FAIL jobs ..}
node{
try{
echo 'Clearing workspace before cloning: '
cleanWs()
// Clones the repository from the current branch name
git credentialsId: 'credentialsId', url: repoUrl
Funcion_SUCCESS()
Funcion_UNSTABLE()
Funcion_FAIL()
emailext(body: '${FILE,path="EMAIL.html"}', mimeType: 'text/html', replyTo: '$DEFAULT_REPLYTO', subject: '${DEFAULT_SUBJECT}', to: env.EMAIL)
}
catch (err) {echo "Error detect"}
}
Output that gets stuck:
Output that finishes: