If you encounter issues with WeChat on your Apple Watch after updating, follow these troubleshooting steps:
Open the Watch app on your iPhone.
1. Locate and select WeChat within the Watch app.
2. If WeChat is not visible, restart your iPhone and try again.
3. Selecting WeChat from the Watch app, disable all options in the WeChat menu, wait for 10 seconds and then re-enable them.
4. Open WeChat on your Apple Watch. Note that it may take a few minutes to start for the first time.