Cloud Agent from Plan Always Fails

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

If I start a cloud agent using the IDE and a plan generated by cursor, the cloud agent always fails with an uninformative error:

“Agent encountered an error
We encountered an unexpected error repeatedly.
You can retry by writing a follow-up below.”

The agent/environment seems to work fine if I copy paste the plan and start an agent from the web browser.

Because there isn’t any additional context, I’m not able to methodically troubleshoot the failure. Sometimes it’ll show the steps that it took before failure i.e. “Running update script, setting up repository, hydrated environment for 4.7s”. But it doesn’t seem to reliably fail at the same step.

Considering this isn’t a widely report issue, it leads me to believe this is an issue with how our repo is specifically setup. I’ve tried turfing and updating the environment a few times, but it hasn’t changed the outcome.

Steps to Reproduce

  1. Use plan mode in cursor to generate a plan
  2. Build the plan using cursor cloud
  3. Cloud Agent fails every time with an error visible in the IDE or in the web browser

Expected Behavior

The agent builds the plan and submits a PR.

Operating System

MacOS

Version Information

Version: 3.2.16 (Universal)
VSCode Version: 1.105.1
Commit: 3e548838cf824b70851dd3ef27d0c6aae371b3f0
Date: 2026-04-28T21:07:47.682Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.3.0

For AI issues: which model did you use?

Auto (usually failing with GPT-5.5 High)

For AI issues: add Request ID with privacy disabled

bc-7ff6960b-259b-49d6-9437-d2d4b94f3b75
bc-399aac79-1edb-404c-930c-b85627e3df6c
bc-2790ffad-c40b-4cfc-ba37-888f2f81a0af
bc-57cddebf-624d-413c-9933-680cb8f89625
bc-908a59e0-fc11-4f33-8b88-15ff74b53278

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

5

Hey, I checked all 5 bcIds. The agents are failing during startup and handoff, before the model even starts running. The pattern is familiar, Build in Cloud fails in the IDE but the same plan works via the web. I can’t pin down the exact failure point without logs.

First thing to try is updating to the latest version. You’re on 3.2.16 from April 28, and since then we shipped a few fixes in the plan and cloud handoff path, so there’s a good chance one of them covers your case.

If it still repros after the update, please send me a couple of fresh bcIds from the new version. I’ll pass them to the engineers who have full log access so they can look at the specific failure mode.

For now, as a workaround, copy-pasting the plan into the web cloud agent is a solid option, like you already noticed.

6

It’s working after updating thank you!