Juno REPL on Windows

I normally use Linux, but today I’m trying to run Juno on Windows 10 and the REPL is proving to be pain. I have uber-juno installed in Atom, and I’ve even manually run:

pkg> add Juno
pkg> add Atom
pkg> add LanguageServer

in a Julia terminal, yet when I open the REPL and press Enter to start it I get the error: “Julia has exited.” This is the output of Julia Client: Debug Info:

Atom:

Version: 1.48.0
Dev Mode: false
Official Release: true
{
“node”: “12.0.0”,
“v8”: “7.3.492.27-electron.0”,
“uv”: “1.27.0”,
“zlib”: “1.2.11”,
“brotli”: “1.0.7”,
“ares”: “1.15.0”,
“modules”: “70”,
“nghttp2”: “1.34.0”,
“napi”: “4”,
“llhttp”: “1.1.1”,
“http_parser”: “2.8.0”,
“openssl”: “1.1.0”,
“icu”: “63.1”,
“unicode”: “11.0”,
“electron”: “5.0.13”,
“chrome”: “73.0.3683.121”
}

julia-client:

Version: 0.12.5
Config:
{
“currentVersion”: “0.12.5”,
“firstBoot”: false,
“juliaPath”: “C:\Users\username\AppData\Local\Programs\Julia\Julia-1.4.2\bin\julia.exe”,
“uiOptions”: {
“enableMenu”: true,
“enableToolBar”: true,
“layouts”: {
“defaultPanes”: {
“console”: false,
“documentation”: false,
“plotPane”: false,
“workspace”: false
}
}
}
}

ink:

Version: 0.12.4
Config:
undefined

uber-juno:

Version: 0.3.0
Config:
{
“disable”: true
}

language-julia:

Version: 0.19.3
Config:
undefined

language-weave:not installed

indent-detective:

Version: 0.4.0
Config:
undefined

latex-completions:

Version: 0.3.6
Config:
undefined

Could not connect to Julia.

and Julia path is of course appropriately set to C:\Users\username\AppData\Local\Programs\Julia\Julia-1.4.2\bin\julia.exe (and I have checked, this file does exist and executing it in cmd.exe starts Julia). I’m asking for help here instead of filing a bug report at uber-juno because I’m hoping I’ve just made a mistake.