hi @Awws
that is problem with RCS
Duplicate RCS messages after turning on Wi-Fi typically occur because the phone attempts to send or receive a message via mobile data (which may be weak), fails, and then successfully resends it as an RCS message once a stronger Wi-Fi connection is established. The system often fails to recognize the first attempt as successful, resulting in the recipient getting the message twice.
Disable "Automatically resend as text (SMS/MMS)": In Google Messages, go to Settings > RCS chats and turn off "Automatically resend as text (SMS/MMS)". This stops the phone from sending a backup SMS when it thinks the RCS message failed.
Toggle Wi-Fi and Data: Turn Wi-Fi off and back on again, or toggle Airplane mode to reset all network connections.
Restart Your Device: A simple reboot can fix stuck processes, including network handoffs.
