Error 504 when using Copilot for Business

[elihwyma]

Describe the bug

During long programming sessions I will occasionally get the error that I have reached my Monthly Completion Limit. Pressing on the extension in the Menu Bar shows additional information: CLS Error, Last Response was a 504 Error. Pressing the view on GitHub button just redirects to github.com/copilot

Versions

• Copilot for Xcode: 0.32.0
• Xcode: 16.2
• macOS: 15.3.2

Screenshots

Logs

[2025-03-28T13:42:02.190Z] [info] [GitHubCopilot] [5058] window/logMessage: {
  "message" : "[fetchCompletions] request.response: [https:\/\/proxy.business.githubcopilot.com\/v1\/engines\/copilot-codex\/completions] took 10013.983042001724 ms",
  "type" : 3
}
[2025-03-28T13:42:02.190Z] [info] [GitHubCopilot] [5058] statusNotification: {
  "busy" : true,
  "kind" : "Warning",
  "status" : "InProgress",
  "message" : "Last response was a 504 error"
}
[2025-03-28T13:42:02.190Z] [info] [GitHubCopilot] [5058] window/logMessage: {
  "message" : "[fetchCompletions] Unhandled status from server: 504 request timeout\n",
  "type" : 1
}
[2025-03-28T13:42:02.191Z] [info] [GitHubCopilot] [5058] statusNotification: {
  "busy" : false,
  "kind" : "Warning",
  "status" : "Warning",
  "message" : "Last response was a 504 error"
}
[2025-03-28T13:42:02.196Z] [error] [GitHubCopilot] [5058] Failed to send request textDocument/inlineCompletion. Error: Language server error: Server error: -32603 unhandled status from server: 504 request timeout
 nil
[2025-03-28T13:42:02.196Z] [info] [GitHubCopilot] [5058] Try getting suggestions again: Language server error: Server error: -32603 unhandled status from server: 504 request timeout
 nil

[jamesyorke]

Same

[LightHouse2013]

I have the same latest version, bad experience

[ktiays]

I also encountered the error repeatedly, and could only recover by completely restarting the plugin.

[ipodishima]

Same here. Really annoying. And the worst thing is this happens really quickly

[kelvinharron]

I have encountered this a few times in the last two weeks. The workaround is to use Visual Studio Code instead which is not ideal.

[testforstephen]

This error is not related to the completion limit reached. The completion limit reached is popped up by mistake. It seems related to the completion request timeout with the new completion model.

[Tolomas]

I have some Developers that experience this issue to, but for some wired reason it works when they work from home via VPN.