diff --git a/Jenkinsfile b/Jenkinsfile
index 1f304eda..1a1611d3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -12,7 +12,7 @@ pipeline {
       steps {
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=1281']) {
+        withEnv(['NEXT_BUILD_NUMBER=1282']) {
           // env.versionNumber = VersionNumber(versionNumberString : '6.9.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '6.9.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO'
diff --git a/MP-IO/Controllers/IOBController.cs b/MP-IO/Controllers/IOBController.cs
index 7a259209..733b07c1 100644
--- a/MP-IO/Controllers/IOBController.cs
+++ b/MP-IO/Controllers/IOBController.cs
@@ -195,7 +195,7 @@ namespace MP_IO.Controllers
       }
       catch (Exception exc)
       {
-        logger.lg.scriviLog(string.Format("Errore in flog{0}{1}", Environment.NewLine, exc));
+        logger.lg.scriviLog($"Errore in flog{Environment.NewLine}{exc}");
         answ = "NO";
       }
       return answ;
diff --git a/MapoDb/DataLayer.cs b/MapoDb/DataLayer.cs
index 2c1ebcb4..4c5cdd39 100644
--- a/MapoDb/DataLayer.cs
+++ b/MapoDb/DataLayer.cs
@@ -816,7 +816,10 @@ namespace MapoDb
       {
         if (idxMacchina != "" && valore != "")
         {
-          DataLayer.obj.taFL.InsNew(idxMacchina, dataOraEvento, flux, valore, contatore);
+          // 2020.01.31 nuovo OBJ
+          DataLayer man = new DataLayer();
+          man.taFL.InsNew(idxMacchina, dataOraEvento, flux, valore, contatore);
+          //DataLayer.obj.taFL.InsNew(idxMacchina, dataOraEvento, flux, valore, contatore);
           // registro in risposta che è andato tutto bene...
           answ = "OK";
         }
@@ -1712,7 +1715,10 @@ namespace MapoDb
           }
           else
           {
-            answTab = MapoDb.obj.taAnagSt.GetData();
+            //2020.01.31 nuovo obj x evitare concorrenza
+            MapoDb man = new MapoDb();
+            answTab = man.taAnagSt.GetData();
+            //answTab = MapoDb.obj.taAnagSt.GetData();
             // salvo in redis...
             rCall = JsonConvert.SerializeObject(answTab);
             int anagrCacheDur = memLayer.ML.CRI("anagrCacheDur");
@@ -2080,10 +2086,10 @@ namespace MapoDb
       bool answ = false;
       try
       {
+        // recupero con stored NUOVA...
         //2020.01.31 NUOVO oggetto singleton
         DataLayer man = new DataLayer();
         datiProdAct = man.taStatoProd.GetData(idxMacchina, dataRif);
-        //// recupero con stored NUOVA...
         //datiProdAct = DataLayer.obj.taStatoProd.GetData(idxMacchina, dataRif);
         if (datiProdAct.Rows.Count > 0)
         {
diff --git a/MapoDb/MapoDb.cs b/MapoDb/MapoDb.cs
index 2eed9771..0d744945 100644
--- a/MapoDb/MapoDb.cs
+++ b/MapoDb/MapoDb.cs
@@ -459,7 +459,10 @@ namespace MapoDb
       logger.lg.scriviLog("Recupero currODLTab da DB!", tipoLog.INFO);
       try
       {
-        answ = DataLayer.obj.taODL.getByMacchina(idxMacchina);
+        //2020.01.31 nuovo obj x evitare singleton
+        DataLayer man = new DataLayer();
+        answ = man.taODL.getByMacchina(idxMacchina);
+        //answ = DataLayer.obj.taODL.getByMacchina(idxMacchina);
       }
       catch (Exception exc)
       {