intiface-desktop gets confused after pressing "Start Server" if a server is already running from the CLI on the same port

[notsafeforbread]

I can confuse Intiface-desktop if I press "Start server" while I'm already running the server from the CLI on the same port - The server process run from intiface-desktop closes instantly but "Stop Server" doesn't go away and does nothing when clicked.

To reproduce:

1. Open a terminal window at IntifaceCLI's directory
2. Run ./IntifaceCLI --wsinsecureport 12345
3. Attempt to "Start Server" via intiface-desktop on the same port. This server will immediately exit
4. Attempt to "Stop Server" and notice the button does nothing

Expected behavior:

Since the server never started, the button should return to "Start Server" or perhaps display a message indicating what happened.

Output from running intiface-desktop via terminal:

/home/matthew/.config/Intiface/engine/IntifaceCLI
{"logType":"backend","location":"d","message":"Running /home/my_username/.config/Intiface/engine/IntifaceCLI with arguments --servername,Intiface Server,--frontendpipe,--stayopen,--wsallinterfaces,--wsinsecureport,12345,--log,Trace","level":"info","timestamp":"2020-09-08T06:30:37.924Z"}
{"logType":"backend","location":"d","message":"Server process sent first message, continuing.","level":"debug","timestamp":"2020-09-08T06:30:37.932Z"}
{"logType":"backend","location":"d","message":"Server process exited.","level":"debug","timestamp":"2020-09-08T06:30:37.935Z"}