[NemoClaw][Brev Launchable] Openclaw UI only shows the most recently onboarded sandbox configuration when two sandboxes exist

[caroline-xuan]

Description

[Description]

When onboarding two sandboxes in on brev instance, it guides user to access openclaw ui:

  OpenClaw UI (tokenized URL; treat it like a password)
  Port 18789 must be forwarded before opening this URL.
  http://127.0.0.1:18789/#token=46f6c..........
  https://openclaw0-lrc5y8jix.brevlab.com/#token=46f6c9.....

the UI only shows the configuration for the most recently onboarded sandbox.

[Environment]

• Device: Brev instance Ubuntu 22.04.5 LTS
• Node.js: v22.22.1
• Docker: Docker Engine 29.3.0
• OpenShell CLI: 0.0.10
• NemoClaw: v0.1.0 (36f4456 )
• OpenClaw: 2026.3.11 (29dc654)

[Steps to Reproduce]

1. Open brev launchable link https://brev.nvidia.com/launchable/deploy/now?launchableID=env-3Azt0aYgVNFEuz7opyx3gscmowS
2. Open two sandbox
3. Access Openclaw UI for each sandbox

[Expected Behavior]
If multiple sandboxes have been onboarded, the UI should allow users to view and manage the configuration of each sandbox separately.

[Actual Behavior]
Only the latest sandbox configuration is displayed. The earlier sandbox is not shown, or its configuration is overwritten / inaccessible in the UI.

Steps to reproduce

No steps provided.

---

[NVB# 6035484]

[NVB#6035484]

[wscurran]

✨
Possibly related open PRs:

• #1121 fix(sandbox): restrict /sandbox to read-only via Landlock (#804)
• #1089 fix(install): ensure .openclaw-data ownership for sandbox user (fixes #692)
• #1215 [codex] disable unsupported OpenClaw self-update hints in sandbox