diff --git a/Jenkinsfile b/Jenkinsfile
index 7d971fdc..45591c40 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -18,7 +18,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=1236']) {
+        withEnv(['NEXT_BUILD_NUMBER=1237']) {
           // env.versionNumber = VersionNumber(versionNumberString : '6.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '6.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO'
diff --git a/MP-IO/Controllers/IOBController.cs b/MP-IO/Controllers/IOBController.cs
index c37a896f..46af77d8 100644
--- a/MP-IO/Controllers/IOBController.cs
+++ b/MP-IO/Controllers/IOBController.cs
@@ -275,7 +275,17 @@ namespace MP_IO.Controllers
       connDb.scriviKeepAlive(id, DateTime.Now);
       try
       {
-        DataLayer.remTask4Machine(id, taskName);
+        // converto stringa in tipo task...
+        taskType tName = taskType.nihil;
+        bool fatto = Enum.TryParse(taskName, out tName);
+        if (fatto)
+        {
+          DataLayer.remTask4Machine(id, tName);
+        }
+        else
+        {
+          logger.lg.scriviLog($"remTask2Exe: impossibile riconoscere il comando {taskName} come uno deitipi ammessi, NON aggiunto", tipoLog.ERROR);
+        }
         answ = getTask2Exe(id);
       }
       catch
diff --git a/MapoDb/DataLayer.cs b/MapoDb/DataLayer.cs
index a7c46640..6d03c45a 100644
--- a/MapoDb/DataLayer.cs
+++ b/MapoDb/DataLayer.cs
@@ -1171,6 +1171,29 @@ namespace MapoDb
       { }
       return answ;
     }
+    /// <summary>
+    /// RIMUOVE un task dall'elenco di quelli salvati
+    /// </summary>
+    /// <param name="idxMacchina"></param>
+    /// <param name="taskKey"></param>
+    /// <returns></returns>
+    public static bool remTask4Machine(string idxMacchina, taskType taskKey)
+    {
+      bool answ = false;
+      string currHash = exeTaskHash(idxMacchina);
+      try
+      {
+        // leggo task attuali...
+        var currTask = mTaskMacchina(idxMacchina);
+        currTask.Remove(taskKey.ToString());
+        memLayer.ML.redDelKey(currHash);
+        answ = memLayer.ML.redSaveHashDict(currHash, currTask);
+        logger.lg.scriviLog($"Task REM - idxMacchina: {idxMacchina} | taskKey: {taskKey.ToString()}");
+      }
+      catch
+      { }
+      return answ;
+    }
 #if false
     /// <summary>
     /// Aggiunge un task all'elenco di quelli salvati (in modalità upsert)
@@ -1195,7 +1218,6 @@ namespace MapoDb
       { }
       return answ;
     } 
-#endif
     /// <summary>
     /// RIMUOVE un task dall'elenco di quelli salvati
     /// </summary>
@@ -1219,6 +1241,7 @@ namespace MapoDb
       { }
       return answ;
     }
+#endif
 
     #endregion