diff --git a/AppData/ComLib.cs b/AppData/ComLib.cs
index ec32b7c..f3d2050 100644
--- a/AppData/ComLib.cs
+++ b/AppData/ComLib.cs
@@ -1199,6 +1199,24 @@ namespace AppData
             return answ;
         }
         /// <summary>
+        /// Chiave BATCH corrente su redis
+        /// </summary>
+        /// <param name="machine"></param>
+        /// <returns></returns>
+        protected static string redCurrBatchId(string machine)
+        {
+            string answ = "";
+            if (string.IsNullOrEmpty(machine))
+            {
+                answ = $"{redProdReq}:CurrBatchID";
+            }
+            else
+            {
+                answ = $"{redProdReq}:CurrBatchID:{machine}";
+            }
+            return answ;
+        }
+        /// <summary>
         /// Chiave Bunk corrente su redis
         /// </summary>
         /// <param name="machine"></param>
@@ -1241,12 +1259,32 @@ namespace AppData
         {
             resetCurrBunk();
             resetCurrSheet();
-            setCurrBunkId(machine, -2);
-            setCurrSheetId(machine, -2);
+            setCurrBatchId(machine, 0);
+            setCurrBunkId(machine, 0);
+            setCurrSheetId(machine, 0);
             redisFirstBunk = null;
         }
         /// <summary>
         /// Cache redis del BunkID in lavorazione sulla macchina
+        /// <param name="machine"></param>
+        /// </summary>
+        public static int getCurrBatchId(string macchina)
+        {
+            int answ = -1;
+            string rawData = memLayer.ML.getRSV(redCurrBatchId(macchina));
+            int.TryParse(rawData, out answ);
+            return answ;
+        }
+        /// <summary>
+        /// Salvataggio in redis del BunkID in lavorazione sulla macchina
+        /// </summary>
+        public static void setCurrBatchId(string macchina, int BatchID)
+        {
+            memLayer.ML.setRSV(redCurrBatchId(macchina), BatchID.ToString());
+        }
+        /// <summary>
+        /// Cache redis del BunkID in lavorazione sulla macchina
+        /// <param name="machine"></param>
         /// </summary>
         public static int getCurrBunkId(string macchina)
         {
@@ -1264,6 +1302,7 @@ namespace AppData
         }
         /// <summary>
         /// Cache redis del SheetID in lavorazione sulla macchina
+        /// <param name="machine"></param>
         /// </summary>
         public static int getCurrSheetId(string macchina)
         {
@@ -1277,7 +1316,7 @@ namespace AppData
         /// </summary>
         public static void setCurrSheetId(string macchina, int SheetID)
         {
-            memLayer.ML.setRSV(redCurrBunkId(macchina), SheetID.ToString());
+            memLayer.ML.setRSV(redCurrSheetId(macchina), SheetID.ToString());
         }
         /// <summary>
         /// Cache redis del PRIMO bunk da lavorare
diff --git a/Jenkinsfile b/Jenkinsfile
index c6a39d7..6739e6e 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -11,7 +11,7 @@ pipeline {
       steps {
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=326']) {
+        withEnv(['NEXT_BUILD_NUMBER=327']) {
           // env.versionNumber = VersionNumber(versionNumberString : '1.1.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '1.1.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.versionNumberBeta = VersionNumber(versionNumberString : '1.1.${BUILD_DATE_FORMATTED, "yyMM"}-beta.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
diff --git a/NKC_WF/site/MachineUnload.aspx.cs b/NKC_WF/site/MachineUnload.aspx.cs
index 5f514cf..cd362f0 100644
--- a/NKC_WF/site/MachineUnload.aspx.cs
+++ b/NKC_WF/site/MachineUnload.aspx.cs
@@ -16,12 +16,25 @@ namespace NKC_WF
             if (!Page.IsPostBack)
             {
                 ((SiteMaster)this.Master).showSearch = false;
-                BatchId = -1;
-                SheetId = -1;
                 doUpdate();
             }
         }
 
+        protected int savedBatchId
+        {
+            get
+            {
+                return ComLib.getCurrBatchId(machine);
+            }
+        }
+        protected int savedSheetId
+        {
+            get
+            {
+                return ComLib.getCurrSheetId(machine);
+            }
+        }
+
         /// <summary>
         /// BatchId corrente...
         /// </summary>
@@ -30,11 +43,11 @@ namespace NKC_WF
             set
             {
                 hfBatchID.Value = value.ToString();
-                ComLib.setCurrBunkId(machine, value);
+                ComLib.setCurrBatchId(machine, value);
             }
             get
             {
-                int answ = ComLib.getCurrBunkId(machine);
+                int answ = 0;
                 int.TryParse(hfBatchID.Value, out answ);
                 return answ;
             }
@@ -51,7 +64,7 @@ namespace NKC_WF
             }
             get
             {
-                int answ = ComLib.getCurrSheetId(machine);
+                int answ = 0;
                 int.TryParse(hfSheetID.Value, out answ);
                 return answ;
             }
@@ -72,6 +85,8 @@ namespace NKC_WF
             if (doUpdate)
             {
                 cmp_MU_svgViewer.doUpdate();
+                upnlDrawings.DataBind();
+                upnlDrawings.Update();
                 upnlTitle.Update();
             }
         }
@@ -85,16 +100,21 @@ namespace NKC_WF
             DS_App.StackListRow currBunk = ComLib.getCurrBunk();
             if (currBunk != null)
             {
-                if (BatchId != currBunk.BatchID)
+                bool chgBtLocal = BatchId != currBunk.BatchID;
+                bool chgBtCache = savedBatchId != currBunk.BatchID;
+                if (chgBtLocal || chgBtCache)
                 {
                     BatchId = currBunk.BatchID;
+                    SheetId = 0;
                     needUpdate = true;
                 }
 
                 DS_App.SheetListRow currSheet = ComLib.getCurrSheet(BatchId, machine);
                 if (currSheet != null)
                 {
-                    if (SheetId != currSheet.SheetID)
+                    bool chgShLocal = SheetId != currSheet.SheetID;
+                    bool chgShCache = savedSheetId != currSheet.SheetID;
+                    if (chgShLocal || chgShCache)
                     {
                         SheetId = currSheet.SheetID;
                         needUpdate = true;
@@ -104,8 +124,8 @@ namespace NKC_WF
             else
             {
                 BatchId = 0;
+                SheetId = 0;
                 ComLib.setCurrBunkId(machine, 0);
-                ComLib.setCurrSheetId(machine, 0);
                 ComLib.man.resetSheetUnload(0);
             }
             // se sheet/bunk 0 --> update!
@@ -120,6 +140,13 @@ namespace NKC_WF
         {
             // in base al num di sec dell'ora decido cosa aggiornare...
             int counter = numWaitSvg;
+            // ogni x cicli resetto batch/Foglio
+            if (counter % 15 == 0)
+            {
+                //BatchId = -3;
+                SheetId = -3;
+            }
+            // ora faccio verifiche
             doUpdate();
             // ogni x cicli
             if (counter % 10 == 0)
@@ -165,7 +192,9 @@ namespace NKC_WF
         {
             get
             {
-                return memLayer.ML.getRCnt(redProdReq);
+                int answ = 999;
+                answ = memLayer.ML.getRCnt(redProdReq);
+                return answ;
             }
         }
         /// <summary>
@@ -173,7 +202,7 @@ namespace NKC_WF
         /// </summary>
         protected void incrNumWait()
         {
-            if (numWaitSvg > 20)
+            if (numWaitSvg > 30)
             {
                 memLayer.ML.resetRCnt(redProdReq);
                 Response.Redirect(Request.RawUrl);