A message sent at launch waits instead of failing
A prompt sent while Bandicot is still starting now waits for it and goes through, instead of failing with a host error and making you send it again.
Right after launch the window was still connecting to the engine, and a prompt sent in that moment was turned away. Sending now nudges the connection, waits for it, and then sends your message. If Bandicot really cannot start, your text stays in the prompt bar.