Sending a string or text of 1024 or more characters disconnects Client and Server

Sending a string or text of 1024 or more characters disconnects Client and Server. 1023 works without disconnection.

Possibly a buffer overflow problem? Is this expected behavior?

Reproduced in 4.9.2 binary and Main (CL 2709700)

1. Open the attached project
2. PIE with Players set to 2
3. Press Enter to focus the chat widget
4. Enter a 1024 character string
5. Hit Enter to send to Server and Clients

Result:
Clients are disconnected from the Server