electron-builder: Building a second Windows release gives a task was cancelled error

• 6.3.1:

• Squirrel.Windows:

I successfully built a first windows release and create a release on my github repository with the relevant build files attached. I have a squirrel server that is correctly finding these builds and I can install my application from the packages perfectly.

When I try to build a new version of the app, the build errors out with the below error. I am not entirely sure what the actual error is here. What is this /RELEASES url? Is that valid?

Here is the relevant config from my package.json:

"build": {
  "appId": "<redacted>",
  "category": "public.app-category.utilities",
  "asar": false,
  "win": {
    "iconUrl": "<redacted>",
    "remoteReleases": "https://github.com/tom-james-watson/artpip-app",
    "remoteToken": "<redacted>"
  }
},
"directories": {
  "output": "releases"
},

Any pointers? Let me know if you need more info.

Error:

Building Squirrel.Windows installer

Error: mono exited with code 255
Output:
Trying to download RELEASES index from https://github.com/tom-james-watson/artpip-app/RELEASES
Trying to download RELEASES index from https://github.com/tom-james-watson/artpip-app/RELEASES
Trying to download RELEASES index from https://github.com/tom-james-watson/artpip-app/RELEASES
Trying to download RELEASES index from https://github.com/tom-james-watson/artpip-app/RELEASES

Error output:
Attempting to sync URL as remote RELEASES folder
Failed to sync URL as GitHub repo: A task was canceled.
System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: 404 (Not Found)
  at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode () <0x1138b6200 + 0x000f0> in <filename unknown>:0
  at System.Net.Http.HttpClient+<GetStringAsync>c__async6.MoveNext () <0x1138b48b0 + 0x00277> in <filename unknown>:0
--- End of stack trace from previous location where exception was thrown ---
......