# Cursor crashes when I try to open the plan file

**URL:** <https://forum.cursor.com/t/cursor-crashes-when-i-try-to-open-the-plan-file/150036>\
**Category:** Bug Reports\
**Tags:** crashes, plan-mode\
**Created:** [January 27, 2026, 5:59am UTC](https://forum.cursor.com/t/cursor-crashes-when-i-try-to-open-the-plan-file/150036 "2026-01-27T05:59:13Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Marek\_Fraczyk](https://avatars.discourse-cdn.com/v4/letter/m/ee59a6/32.png) [@Marek\_Fraczyk](https://forum.cursor.com/u/Marek_Fraczyk)\
**Post date:** [February 6, 2026, 9:47am UTC](https://forum.cursor.com/t/cursor-crashes-when-i-try-to-open-the-plan-file/150036/7 "2026-02-06T09:47:17Z")

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Had the same crash but for me it was for all .md files. Cursor would freeze when opened in the editor, but preview works fine.

Checked the logs (~/Library/Application Support/Cursor/logs/ → main.log) and found the **breadcrumbs bar** at the top of the editor gets stuck in an infinite loop trying to parse the Markdown headings.

**Fix:** Open Settings → search “breadcrumbs” → turn off **Breadcrumbs: Enabled**. File opens fine after that.

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_[View the full topic](https://forum.cursor.com/t/cursor-crashes-when-i-try-to-open-the-plan-file/150036)._