You are experiencing an issue with message synchronization between WhatsApp on your Motorola phone and the WhatsApp web app on your PC. After updating the PC app, deleting a message on one device no longer syncs and deletes on the other. Here's what you can try:
- Ensure stable internet connection on both devices.
- Update both WhatsApp applications to the latest versions.
- Restart devices and reconnect the web app.
- Check synchronization settings in WhatsApp on your phone.
- Clear cache and data on your phone (backup chats first).
- Contact WhatsApp support or consult the community forum for further assistance.