GitLab Duo Agent Platform (beta) runs into error while processing request, not usable afterwards

Checklist

• I'm using the latest version of the extension (see the latest version in the right column of this page)
  • Extension version: 6.49.2
• I'm using the latest VS Code version (find the latest version here)
  • VS Code version: Version: 1.104.2 (system setup) Commit: e3a5acfb517a443235981655413d566533107e92 Date: 2025-09-24T11:21:37.073Z Electron: 37.3.1 ElectronBuildId: 12404162 Chromium: 138.0.7204.235 Node.js: 22.18.0 V8: 13.8.258.31-electron.0 OS: Windows_NT x64 10.0.26100
• I'm using a supported version of GitLab (see README for the supported version)
  • GitLab version: happens on gitlab.com

Summary

After a bit of usage, GitLab Duo Agent Platform (Beta) reports a generic error and can't be used anymore.

See below for logs.

Restarting VS Code doesn't fix the problem.

Steps to reproduce

Just use GitLab Duo Agent Platform for a while, no particular pattern, previously it worked for a couple of messages. Now, it's failing constantly and can't even process the initial message in a new session.

What is the current bug behavior?

GitLab Duo Agent Platform just states: "There was an error processing your request. Please try again or contact support if the issue persists."

What is the expected correct behavior?

GitLab Duo Agent Platform should process the message and keep responding to each subsequent message.

Relevant logs and/or screenshots

Sometimes, there are errors related to GraphQL, e.g. Error fetching workflow: GraphQL request "query: getDuoWorkflowEvents" failed with

Screenshot:

The GitLab Workflow output contains many messages like this one:

Unable to merge security findings reports.
    Cannot read properties of null (reading 'status')
    TypeError: Cannot read properties of null (reading 'status')
        at hasEmptyReport (/home/me/.vscode-server/extensions/src/desktop/gitlab/security_findings/get_all_security_reports.ts:46:10)
        at /home/me/.vscode-server/extensions/src/desktop/gitlab/security_findings/get_all_security_reports.ts:43:79
        at Array.filter (<anonymous>)
        at validFindingReports (/home/me/.vscode-server/extensions/src/desktop/gitlab/security_findings/get_all_security_reports.ts:43:66)
        at ske (/home/me/.vscode-server/extensions/src/desktop/gitlab/security_findings/get_all_security_reports.ts:78:22)
        at processTicksAndRejections (node:internal/process/task_queues:105:5)
        at Function.getState (/home/me/.vscode-server/extensions/src/desktop/current_branch_refresher.ts:185:28)
        at t.refresh (/home/me/.vscode-server/extensions/src/desktop/current_branch_refresher.ts:130:25)
        at Timeout._onTimeout (/home/me/.vscode-server/extensions/src/desktop/current_branch_refresher.ts:124:7)

Possible fixes