Hello! I understand that your DJI Mimo app is freezing either during video creation or while uploading the video. Let's work through this together to get your app running smoothly again.

First, to get a better idea, could you tell me:
- What device are you using the app on? (Phone model or type)
- Are you saving the video locally before upload or uploading directly?
- Approximately how large your video files are?
- Have you noticed if this happens with all videos or only certain ones?

Meanwhile, here are some initial troubleshooting steps tailored for Windows browsing with WebKit environment:

1. Ensure the DJI Mimo App Is Fully Updated
Even if you use the app on a mobile device, check that you have the latest DJI Mimo app version installed. Updates often contain important bug fixes related to crashes and freezing.

2. Clear Cache and Temporary Data
Sometimes cached data can cause the app to stall. Although you are on Windows browser, ensure your system clears cache related to the app (if using a companion program), or clear app cache on your mobile device where the app is installed.

3. Check Storage Space
Insufficient memory can cause uploading and video processing to freeze. Verify you have adequate free space on your device or SD card before creating or uploading videos.

4. Close Other Background Apps
Running several apps simultaneously can cause resource constraints. Close other applications running in the background to free up system resources.

5. Try Uploading Smaller Videos
If freezing mainly occurs during upload, test with smaller video files to narrow down if file size contributes to the issue.

6. Reinstall the App
If none of the above helps, uninstall the DJI Mimo app and then reinstall from the official source to fix potential corrupted files.

If you confirm your device and app usage details, I can guide you through more advanced setting changes or account checks if needed.

Would you like me to assist you step-by-step with any of these for your setup?

Are you satisfied with this initial guidance?