diff --git a/gaseous-server/Support/PlatformMap.json b/gaseous-server/Support/PlatformMap.json
index b4c9210..9e8e4d0 100644
--- a/gaseous-server/Support/PlatformMap.json
+++ b/gaseous-server/Support/PlatformMap.json
@@ -3391,14 +3391,29 @@
       "ZX81"
     ],
     "Extensions": {
-      "SupportedFileExtensions": [],
+      "SupportedFileExtensions": [
+        ".P",
+        ".TZX",
+        ".T81"
+      ],
       "UniqueFileExtensions": []
     },
     "RetroPieDirectoryName": "",
     "WebEmulator": {
-      "Type": "",
-      "Core": "",
-      "AvailableWebEmulators": null
+      "Type": "EmulatorJS",
+      "Core": "81",
+      "AvailableWebEmulators": [
+        {
+          "EmulatorType": "EmulatorJS",
+          "AvailableWebEmulatorCores": [
+            {
+              "Core": "81",
+              "AlternateCoreName": "81",
+              "Default": true
+            }
+          ]
+        }
+      ]
     },
     "Bios": []
   },
diff --git a/gaseous-server/wwwroot/pages/game.js b/gaseous-server/wwwroot/pages/game.js
index eacfb91..e133059 100644
--- a/gaseous-server/wwwroot/pages/game.js
+++ b/gaseous-server/wwwroot/pages/game.js
@@ -432,7 +432,7 @@ function LoadGamePlatforms() {
             if (result[i].emulatorConfiguration.emulatorType.length > 0 && result[i].emulatorConfiguration.core.length > 0 && result[i].favouriteRomId) {
                 showSaveState = true;
                 romId = result[i].favouriteRomId;
-                isMediaGroup = result[i].favouriteIsMediaGroup;
+                isMediaGroup = result[i].favouriteRomIsMediagroup;
 
                 platformItem.setAttribute('isFavourite', true);
                 platformItem.classList.add('platform_item_green');
@@ -492,6 +492,7 @@ function LoadGamePlatforms() {
                 platformStateManagerButton.innerHTML = '<img src="/images/SaveStates.png" class="savedstatemanagericon" />';
                 platformStateManagerButton.addEventListener('click', (e) => {
                     e.stopPropagation();
+                    console.log('RomID: ' + romId + ' isMediaGroup: ' + isMediaGroup);
                     let stateManager = new EmulatorStateManager(romId, isMediaGroup, platformData.emulatorConfiguration.emulatorType, platformData.emulatorConfiguration.core, platformData.id, gameId, platformData.lastPlayedRomName);
                     stateManager.open();
                 });