Release 2.13.3

src/web/public/js/media-picker.js

@@ -160,9 +160,16 @@
     if (!activeButton) {
       return null;
     }
+    var explicitInputId = activeButton.getAttribute('data-media-picker-file-input');
+    if (explicitInputId) {
+      var explicitInput = document.getElementById(explicitInputId);
+      if (explicitInput) {
+        return explicitInput;
+      }
+    }
     var hiddenKey = activeButton.getAttribute('data-media-picker-hidden');
     if (hiddenKey) {
-      var inputFromHidden = document.getElementById(hiddenKey.replace(/^existing_/, ''));
+      var inputFromHidden = document.getElementById(hiddenKey.replace(/^existing[-_]/, ''));
       if (inputFromHidden) {
         return inputFromHidden;
       }

src/web/public/js/templates/template-designer.js

@@ -1797,7 +1797,7 @@
       }
       backgroundPreview.removeAttribute('src');
       backgroundPreview.style.display = 'none';
-      backgroundEmpty.style.display = 'block';
+      backgroundEmpty.style.display = 'flex';
     });
   }
   if (animationAdvancedModal) {