diff --git a/Changelog.md b/Changelog.md
index a71dacb..d58d29a 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,8 @@
+# 0.7.8-alpha:
+Bugfixes:
+- Fix mp4 export on macOS
+- Fix animations in imported clips not playing grouped object movements correctly
+
 # 0.7.7-alpha:
 Bugfixes:
 - Fix pasting multiple times
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 59cf689..2117e94 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Lightningbeam",
-  "version": "0.7.7-alpha",
+  "version": "0.7.8-alpha",
   "identifier": "org.lightningbeam.core",
   "build": {
     "frontendDist": "../src"
diff --git a/src/main.js b/src/main.js
index 878a09d..0c696bc 100644
--- a/src/main.js
+++ b/src/main.js
@@ -2242,6 +2242,7 @@ class Layer extends Widget {
     json.children = [];
     let idMap = {}
     for (let child of this.children) {
+      // TODO: we may not need the randomizeUuid parameter anymore
       let childJson = child.toJSON(randomizeUuid)
       idMap[child.idx] = childJson.idx
       json.children.push(childJson);
@@ -2253,7 +2254,7 @@ class Layer extends Widget {
         for (let key in frameJson.keys) {
           if (key in idMap) {
             frameJson.keys[idMap[key]] = frameJson.keys[key]
-            delete frameJson.keys[key]
+            // delete frameJson.keys[key]
           }
         }
         json.frames.push(frameJson);
@@ -4364,11 +4365,11 @@ async function _save(path) {
       }
       return value;
     }
-    for (let action of undoStack) {
-      console.log(action.name);
-    }
+    // for (let action of undoStack) {
+    //   console.log(action.name);
+    // }
     const fileData = {
-      version: "1.7",
+      version: "1.7.5",
       width: config.fileWidth,
       height: config.fileHeight,
       fps: config.framerate,
@@ -4686,6 +4687,8 @@ async function importFile() {
                 uuidCache[key] = uuidv4(); // Store the generated UUID for the value
               }
               obj[key] = uuidCache[key]; // Assign the UUID to the object property
+            } else if (value in uuidCache) {
+              obj[key] = value
             }
           }
         }
@@ -4883,14 +4886,19 @@ function downloadObjectURL(url, filename) {
   URL.revokeObjectURL(url);
 }
 
-function done(output) {
-  const url = URL.createObjectURL(output);
-  downloadObjectURL(url, "test.mp4")
+async function done(output, path) {
+  await writeFile(
+    path, // The destination file path for saving
+    new Uint8Array(await output.arrayBuffer()),
+  );
+  // const url = URL.createObjectURL(output);
+  // downloadObjectURL(url, "test.mp4")
   const modal = document.getElementById('progressModal');
   modal.style.display = 'none';
+  document.querySelector("body").style.cursor = "default";
 }
 
-async function exportMp4() {
+async function exportMp4(path) {
   const worker = new Worker("/ffmpeg-worker-mp4.js")
   // const worker = new Worker("/ffmpeg-worker-webm.js")
 
@@ -5041,7 +5049,7 @@ async function exportMp4() {
         type: "video/mp4"
       });
       // Trigger the done callback with the final video blob
-      done(finalBlob);
+      done(finalBlob, path);
       return;
     }
 
@@ -5100,7 +5108,7 @@ async function exportMp4() {
             type: "video/mp4"
           });
           // Trigger the done callback with the final video blob
-          done(finalBlob);
+          done(finalBlob, path);
           break;
         case 'stderr':
           console.log(msg.data);
@@ -5154,11 +5162,13 @@ async function exportMp4() {
 // exportMp4()
 
 async function render() {
-  exportMp4()
-  return
   document.querySelector("body").style.cursor = "wait";
   const path = await saveFileDialog({
     filters: [
+      {
+        name: "MP4 files (.mp4)",
+        extensions: ["mp4"],
+      },
       {
         name: "APNG files (.png)",
         extensions: ["png"],
@@ -5168,7 +5178,7 @@ async function render() {
         extensions: ["html"],
       },
     ],
-    defaultPath: await join(await documentDir(), "untitled.png"),
+    defaultPath: await join(await documentDir(), "untitled.mp4"),
   });
   if (path != undefined) {
     // SVG balks on images
@@ -5183,6 +5193,10 @@ async function render() {
     const ext = path.split(".").pop().toLowerCase();
 
     switch (ext) {
+      case "mp4":
+        exportMp4(path)
+        return
+        break
       case "html":
         fetch("/player.html")
           .then((response) => {