TCP Server crashes in a loop

[tm1000]

Add a simple route:

Incoming Port: 5001
Incoming Path: /path/to
Outgoing IP: 127.0.0.1
Outgoing Port: 5002
Outgoing Path: /path/to

Go to "TCP Settings..." to add a TCP Server

Mode: Server
Framing OSC 1.1
IP: 127.0.0.1
Port 5002

Now connect to the TCP server though telnet:
telnet 127.0.0.1 5002

Connection is immediately dropped, log goes into a loop

Sat 09 Feb 2019 [16:42:19] tcp server 127.0.0.1:5002 new connection(0.0.0.0:0)
Sat 09 Feb 2019 [16:42:19] tcp client 0.0.0.0:5002 thread started
Sat 09 Feb 2019 [16:42:19]  initialize failed, already initialized
Sat 09 Feb 2019 [16:42:19] tcp client 0.0.0.0:5002 reconnecting in 5...
Sat 09 Feb 2019 [16:42:24] tcp server 127.0.0.1:5002 new connection(0.0.0.0:0)
Sat 09 Feb 2019 [16:42:24] tcp client 0.0.0.0:5002 thread started
Sat 09 Feb 2019 [16:42:24]  initialize failed, already initialized
Sat 09 Feb 2019 [16:42:24] tcp client 0.0.0.0:5002 reconnecting in 5...