MiscGroups bugfixes

*Fixed parser crashing if Platform def not found
*Fixed MiscGroups order
-Removed Platform.miscGroups (debug)

src/model/misc/platform.js

@@ -32,8 +32,6 @@ export default class Platform extends Misc {
             values[9] // name
         );
 
-        object.miscGroups = [...miscGroups];
-
         return object;
     }
 
@@ -41,6 +39,7 @@ export default class Platform extends Misc {
         let def = DefinedPlatforms[prefabName];
         if (!def) {
             SceneryParserLog.warn('platformUndefinedPrefabName', `Platform ${name} has an undefined prefab name ${prefabName}`);
+            return null;
         }
 
         if(def.alias) return Platform.getDef(name, def.alias);

src/model/scenery-parser.js

@@ -115,11 +115,11 @@ export default class SceneryParser {
                 return MainCamera.fromText(text);
             case 'MiscGroup':
                 const group = MiscGroup.fromText(text);
-                currentMiscGroups.unshift(group);
+                currentMiscGroups.push(group);
 
                 return null;
             case 'EndMiscGroup':
-                if(!currentMiscGroups.shift()) {
+                if(!currentMiscGroups.pop()) {
                     SceneryParserLog.warn('endMiscGroupWithoutStart', 'Unexpected EndMiscGroup found without a preceding MiscGroup');
                 }