Filter out invalid/broken characters

server.js

@@ -1350,6 +1350,12 @@ app.post("/getcharacters", jsonParser, function (request, response) {
         let processingPromises = pngFiles.map((file, index) => processCharacter(file, index));
         await Promise.all(processingPromises); performance.mark('B');
 
+        // Filter out invalid/broken characters
+        characters = Object.values(characters).filter(x => x?.name).reduce((acc, val, index) => {
+            acc[index] = val;
+            return acc;
+        }, {});
+
         response.send(JSON.stringify(characters));
     });
 });