diff --git a/core/view/HtmlActionCards.php b/core/view/HtmlActionCards.php
index d9ac981..0c12743 100644
--- a/core/view/HtmlActionCards.php
+++ b/core/view/HtmlActionCards.php
@@ -47,7 +47,7 @@ function card_building() {
     function card_dig() {
         
         return '
-            <a id="card_dig" class="card animate__animated animate__slideInLeft"
+            <a id="card_dig" class="hidden card animate__animated animate__slideInLeft"
                 onclick="toggleActionBlock(\'dig\'); updateBlockAction(\'dig\')">
                 <img src="/resources/img/copyrighted/pickaxe_48px.png" alt="&#9935;&#65039;" height="48">
                 La zone peut être fouillée.
diff --git a/core/view/HtmlPage.php b/core/view/HtmlPage.php
index e021f6f..733f836 100644
--- a/core/view/HtmlPage.php
+++ b/core/view/HtmlPage.php
@@ -11,7 +11,7 @@ class HtmlPage
     // Increment those variables when you modify the CSS or JS files. This ensures
     // that the users' browsers reload the up-to-date files, instead of using 
     // the obsolete ones stored in their cache.
-    private $css_js_version = 56.1;
+    private $css_js_version = 56.2;
     
     /**
      * Sets HTTP headers to secure the website
diff --git a/public/resources/js/actionBlocks.func.js b/public/resources/js/actionBlocks.func.js
index a6b40ce..310f79e 100644
--- a/public/resources/js/actionBlocks.func.js
+++ b/public/resources/js/actionBlocks.func.js
@@ -24,9 +24,10 @@ async function updateBlockAction(blockAlias) {
     }
     else if(blockAlias === "dig") {
         
-        let mapId = document.querySelector("#mapId").innerHTML,
-            myZone = document.querySelector("#me").parentNode.dataset;
-        updateBlockActionDig(mapId, myZone.coordx, myZone.coordy); 
+        let mapId = Number(document.querySelector("#mapId").innerHTML),
+            coordX = Number(document.querySelector("#citizenCoordX").innerHTML),
+            coordY = Number(document.querySelector("#citizenCoordY").innerHTML);
+        updateBlockActionDig(mapId, coordX, coordY); 
     }
 }
 
@@ -291,15 +292,16 @@ async function updateBlockActionDig(mapId, coordX, coordY) {
     let block = document.querySelector("#items_ground .items_list");
     
     // Update the data only one time per zone
-    if(block.dataset.coordx !== coordX || block.dataset.coordy !== coordY
-       || block.innerHTML.length === 0) {
-        
+    if(Number(block.dataset.coordx) !== coordX
+        || Number(block.dataset.coordy) !== coordY
+        || block.innerHTML.length === 0
+        ) {        
         // Clear the obsolete items list from the previous zone
         block.innerHTML = "";        
         // Get the items in the zone by calling the Azimutant's API
-        _myZone = await getMyZoneOnce(mapId, coordX, coordY);        
+        _myZone = await getMyZoneOnce(mapId, coordX, coordY);
         // Set the digging button to grey if the player can't dig
-        updateDigButtons(_myZone.user_specific.is_visited_today);
+        updateDigButtons(await _myZone.user_specific.is_visited_today);
         
         if(_myZone.items.length === 0) {
             // Show the default text if no items on the ground
diff --git a/public/resources/js/mapInit.func.js b/public/resources/js/mapInit.func.js
index ed5962d..2c13729 100644
--- a/public/resources/js/mapInit.func.js
+++ b/public/resources/js/mapInit.func.js
@@ -355,10 +355,16 @@ function switchToActionView() {
     }    
     
     // Activate the "Move" tab action
-    setTimeout(() => {
+    setTimeout(async () => {
         document.querySelector("#round_move").classList.add("active"); 
         toggleActionBlock('move');
         updateBlockAction('move');
+        // Hide the card for digging if the zone is not diggable
+        let mapId = Number(document.querySelector("#mapId").innerHTML),
+            coordX = Number(document.querySelector("#citizenCoordX").innerHTML),
+            coordY = Number(document.querySelector("#citizenCoordY").innerHTML);
+        _myZone = await getMyZoneOnce(mapId, coordX, coordY);
+        updateDigButtons(_myZone.user_specific.is_visited_today); 
     }, 1000);    
     
     // Hide some elements of the GUI to make the interface look lighter
diff --git a/public/resources/js/misc.func.js b/public/resources/js/misc.func.js
index ceec765..97c709c 100644
--- a/public/resources/js/misc.func.js
+++ b/public/resources/js/misc.func.js
@@ -354,7 +354,7 @@ function animateCss(cssSelector, effectName) {
  * @param {int} newCoordY
  * @returns {undefined}
  */
-function updateMeAfterMoving(newCoordX, newCoordY) {
+async function updateMeAfterMoving(newCoordX, newCoordY) {
         
     // Delete the informations about the previous zone (obsolete)
     _myZone = null;    
@@ -380,6 +380,7 @@ function updateMeAfterMoving(newCoordX, newCoordY) {
     updateEnterBuildingButton(myZone.dataset.citytypeid, myZone.dataset.controlpointscitizens, myZone.dataset.zombies);
     updateMoveCost(parseInt(myZone.dataset.zombies));
     updateCardCitizensInZone(myZone.dataset.citizens);
+    updateBlockAction('dig');
     
     setTimeout(()=>{ centerMapOnMe(10) }, 1000);
 }
@@ -457,7 +458,7 @@ async function killZombies(apiAction) {
         let myZone = document.querySelector("#me").parentNode;
         let oldNbrZombies = myZone.dataset.zombies,
             newNbrZombies = Math.max(0, oldNbrZombies - json.datas.nbr_zombies_removed);
-        let mapId = document.querySelector("#gameData #mapId").innerHTML;
+        let mapId = Number(document.querySelector("#gameData #mapId").innerHTML);
         
         // Update the action blocks (round buttons next to the map)
         updateBlockActionZombies(newNbrZombies);