# Selecting any .md (Markdown) file causes Cursor IDE to freeze completely

**URL:** <https://forum.cursor.com/t/selecting-any-md-markdown-file-causes-cursor-ide-to-freeze-completely/151597>\
**Category:** Bug Reports\
**Tags:** nightly, crashes\
**Created:** [February 11, 2026, 3:50pm UTC](https://forum.cursor.com/t/selecting-any-md-markdown-file-causes-cursor-ide-to-freeze-completely/151597 "2026-02-11T15:50:52Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\
**Post date:** [February 11, 2026, 3:54pm UTC](https://forum.cursor.com/t/selecting-any-md-markdown-file-causes-cursor-ide-to-freeze-completely/151597/4 "2026-02-11T15:54:53Z")

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Hey, thanks for the report. This looks like a known issue where the breadcrumbs bar gets stuck in an infinite loop while parsing Markdown headings.

Try this:

1. Settings `CMD + ,` \> search for “breadcrumbs” \> turn off Breadcrumbs: Enabled
2. Try opening the `.md` file again

This helped other users with the same symptom, more details here: [Cursor crashes when I try to open the plan file - #7 by Marek\_Fraczyk](https://forum.cursor.com/t/cursor-crashes-when-i-try-to-open-the-plan-file/150036/7)

If the issue still happens after disabling breadcrumbs, also check:

- Run `cursor --disable-extensions` from Terminal and open the same file. If it works fine without extensions, one of them is causing the freeze.
- Crash logs: `CMD + Shift + P` \> “Developer: Open Log File” and paste what you see right before the freeze.

Let me know how it goes.

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