GitHub Copilot completion and chat troubleshooting

Copilot issues can affect authentication, completions, chat, model access, indexing, extensions, or usage limits.

• Record editor, extension version, feature, and exact time.
• Test a small non-sensitive project.
• Check sign-in and organization policy.
• Review network, proxy, and official status.
• Preserve unsaved code before restarting.

Do not publish proprietary code, prompts, repository names, tokens, or organization data.