diff --git a/Jenkinsfile b/Jenkinsfile
index c1b59b3..d32561c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -17,7 +17,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=235']) {
+        withEnv(['NEXT_BUILD_NUMBER=237']) {
           // env.versionNumber = VersionNumber(versionNumberString : '0.9.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '0.9.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.versionNumberBeta = VersionNumber(versionNumberString : '0.9.${BUILD_DATE_FORMATTED, "yyMM"}-beta.${BUILDS_ALL_TIME}', projectStartDate : '2019-07-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
diff --git a/NKC_WF/Controllers/getMUCssController.cs b/NKC_WF/Controllers/getMUCssController.cs
index 75bb7f4..6fd410f 100644
--- a/NKC_WF/Controllers/getMUCssController.cs
+++ b/NKC_WF/Controllers/getMUCssController.cs
@@ -43,19 +43,22 @@ namespace NKC_WF.Controllers
     {
       // var base
       string answ = "";
-      // recupero da REDIS!
-      string redKey = $"{ComLib.machineUnloadArea(sheetID)}:Css";
-      // se vuoto scrivo VUOTO...
-      if (!memLayer.ML.redKeyPresent(redKey))
+      if (sheetID > 0)
       {
-        memLayer.ML.setRSV(redKey, answ);
-      }
-      answ = memLayer.ML.getRSV(redKey);
-      // RICALCOLO SOLO SE non trovo in REDIS (perché invalidato)
-      if (answ == "")
-      // se vuoto lo calcolo...
-      {
-        answ = ComLib.getCurrentCss(sheetID);
+        // recupero da REDIS!
+        string redKey = $"{ComLib.machineUnloadArea(sheetID)}:Css";
+        // se vuoto scrivo VUOTO...
+        if (!memLayer.ML.redKeyPresent(redKey))
+        {
+          memLayer.ML.setRSV(redKey, answ);
+        }
+        answ = memLayer.ML.getRSV(redKey);
+        // RICALCOLO SOLO SE non trovo in REDIS (perché invalidato)
+        if (answ == "")
+        // se vuoto lo calcolo...
+        {
+          answ = ComLib.getCurrentCss(sheetID);
+        }
       }
       // restituisco css
       return answ;
diff --git a/NKC_WF/Controllers/getMUCssRevController.cs b/NKC_WF/Controllers/getMUCssRevController.cs
index ae508f7..93f862b 100644
--- a/NKC_WF/Controllers/getMUCssRevController.cs
+++ b/NKC_WF/Controllers/getMUCssRevController.cs
@@ -1,5 +1,6 @@
 using AppData;
 using SteamWare;
+using System;
 using System.Web.Http;
 
 namespace NKC_WF.Controllers
@@ -25,26 +26,34 @@ namespace NKC_WF.Controllers
     /// <returns></returns>
     private static int getRevBySheet(int SheetID)
     {
-      int answ;
-      // recupero da REDIS!
-      string redKey = $"{ComLib.machineUnloadArea(SheetID)}:Css";
-      string redKeyRev = $"{ComLib.machineUnloadArea(SheetID)}:CssRev";
-      // se vuoto scrivo 1...
-      if (!memLayer.ML.redKeyPresent(redKeyRev))
+      int answ = 0;
+      if (SheetID > 0)
       {
-        memLayer.ML.setRCntI(redKeyRev);
-      }
-      // SE fosse scaduto CSS --> aggiorno revisione...
-      if (!memLayer.ML.redKeyPresent(redKey))
-      {
-        // incremento...
-        memLayer.ML.setRCntI(redKeyRev);
-      }
-      answ = memLayer.ML.getRCnt(redKeyRev);
-      // se > 999 --> resetto
-      if (answ > 999)
-      {
-        memLayer.ML.resetRCnt(redKeyRev);
+        // recupero da REDIS!
+        string redKeyExp = memLayer.ML.redHash($"DataExp");
+        string redKey = $"{ComLib.machineUnloadArea(SheetID)}:Css";
+        string redKeyRev = $"{ComLib.machineUnloadArea(SheetID)}:CssRev";
+        // controllo expiry globale... se manca SVUOTO area
+        string rawData = memLayer.ML.getRSV(redKeyExp);
+        if (string.IsNullOrEmpty(rawData))
+        {
+          // svuoto e scrivo...
+          memLayer.ML.redFlushKey(memLayer.ML.redHash($"MachineUnload"));
+          memLayer.ML.redFlushKey(memLayer.ML.redHash($"TabSheets"));
+          memLayer.ML.setRSV(redKeyExp, $"Reload Data {DateTime.Now}", 3600);
+        }
+        // SE fosse scaduto CSS --> aggiorno revisione...
+        if (!memLayer.ML.redKeyPresent(redKey))
+        {
+          // incremento...
+          memLayer.ML.setRCntI(redKeyRev);
+        }
+        answ = memLayer.ML.getRCnt(redKeyRev);
+        // se > 999 --> resetto
+        if (answ > 999)
+        {
+          memLayer.ML.resetRCnt(redKeyRev);
+        }
       }
       return answ;
     }
diff --git a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx
index a2d3cd3..2b5c11f 100644
--- a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx
+++ b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx
@@ -3,11 +3,16 @@
 <div id="uplTavola">
   <link href="../api/getMUCss" rel="stylesheet" id="dynCss" />
 </div>
+<asp:HiddenField ID="hfSheetId" runat="server" Value="0" />
+<asp:HiddenField ID="hfFilename" runat="server" Value="" />
+<asp:HiddenField ID="hfCurrRev" runat="server" Value="0" />
 <script type="text/javascript">
   lastVal = 0;
-  setInterval("my_function();", 300);
+  my_function();
+  setInterval("my_function();", 1000);
   function my_function() {
     SheetId = document.getElementById('<%=hfSheetId.ClientID%>').value;
+    lastVal = document.getElementById('<%=hfCurrRev.ClientID%>').value;
     document.getElementById("dynCss").href = "../api/getMUCss/" + SheetId;
     $.ajax({
       url: "../api/getMUCssRev/" + SheetId
@@ -15,12 +20,11 @@
       // se è cambiato...
       if (data != lastVal) {
         $('#uplTavola').load(location.href + ' #dynCss');
-        lastVal = data;
+        document.getElementById('<%=hfCurrRev.ClientID%>').value = data;
+        //lastVal = document.getElementById('<%=hfCurrRev.ClientID%>').value;
       }
     });
   }
 </script>
 <svg width="2000" height="1000" xmlns='http://www.w3.org/2000/svg' runat="server" id="svgTable" class="img-fluid">
 </svg>
-<asp:HiddenField ID="hfSheetId" runat="server" Value="0" />
-<asp:HiddenField ID="hfFilename" runat="server" Value="" />
diff --git a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.designer.cs
index 52b6bbd..4fe8c5e 100644
--- a/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_MU_svgViewer.ascx.designer.cs
@@ -14,15 +14,6 @@ namespace NKC_WF.WebUserControls
   public partial class cmp_MU_svgViewer
   {
 
-    /// <summary>
-    /// Controllo svgTable.
-    /// </summary>
-    /// <remarks>
-    /// Campo generato automaticamente.
-    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
-    /// </remarks>
-    protected global::System.Web.UI.HtmlControls.HtmlGenericControl svgTable;
-
     /// <summary>
     /// Controllo hfSheetId.
     /// </summary>
@@ -40,5 +31,23 @@ namespace NKC_WF.WebUserControls
     /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
     /// </remarks>
     protected global::System.Web.UI.WebControls.HiddenField hfFilename;
+
+    /// <summary>
+    /// Controllo hfCurrRev.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.WebControls.HiddenField hfCurrRev;
+
+    /// <summary>
+    /// Controllo svgTable.
+    /// </summary>
+    /// <remarks>
+    /// Campo generato automaticamente.
+    /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+    /// </remarks>
+    protected global::System.Web.UI.HtmlControls.HtmlGenericControl svgTable;
   }
 }