If the bug is specific to a certain setup, attach a save file where the bug is reproducible.
Released on March 3, 2023, version 1.1.77 was a stable update focusing on bug fixes and modding API additions:
A high-quality report must be actionable, meaning a developer can understand and reproduce the issue without further follow-up.
What you thought should happen (e.g., "The GUI opens normally").
If you are reporting an issue with a version of Factorio downloaded as a .rar from an unofficial source, developers may not be able to provide support. Ensure you are using the official version from Factorio.com or Steam for a valid report.