Copilot is refusing to create PRs from my fork to the upstream branch.

Open

#3,635 opened on Sep 8, 2026 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Active
Tech stack: github
Domain: developer-experience

Research direction

Start in the /chat flow using app version 1.1.15 on Windows 10 and reproduce the failed attempt to create a pull request from a fork to the upstream branch. Compare behavior with Astra enabled and capture the exact permission errors. Done means the cause is identified and the fork-to-upstream pull request can be created successfully or the failure is clearly reported.

Written by the indexing model from the issue text.

Description

Copilot is refusing to create PRs from my fork to the upstream branch. Gives me a bunch of errors about it's not allowed to.

This has been working for months.

I switched to Astra, not sure if that's the cause or not.

Field	Value
App version	1.1.15
OS	Windows 10.0.26200
Theme	GitHub
Path	/chat
Tenure	Week 21

Dominant language: No language data
Stars: 2.1k
Forks: 157
PR merge metrics: No merged PRs in 30d

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First steps

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Open a pull request that references the issue number.

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