# BUG: Cursor NEVER respond after failing to use Box MCP

**URL:** <https://forum.cursor.com/t/bug-cursor-never-respond-after-failing-to-use-box-mcp/147003>\
**Category:** Bug Reports\
**Created:** [December 22, 2025, 2:33am UTC](https://forum.cursor.com/t/bug-cursor-never-respond-after-failing-to-use-box-mcp/147003 "2025-12-22T02:33:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kiminori\_Isaka](https://avatars.discourse-cdn.com/v4/letter/k/5fc32e/32.png) [@Kiminori\_Isaka](https://forum.cursor.com/u/Kiminori_Isaka)\
**Post date:** [December 22, 2025, 2:33am UTC](https://forum.cursor.com/t/bug-cursor-never-respond-after-failing-to-use-box-mcp/147003/1 "2025-12-22T02:33:57Z")

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### Where does the bug appear (feature/product)?

Cursor IDE

### Describe the Bug

I try to call LLM of Agent mode from the Cursor’s Chat pane. It however does not reply at all (on any sentences).

### Steps to Reproduce

(Since my Cursor is completely broken, I just describe what I have done, which may not reproduce the bug)

I did following actions by Agent mode from Cursor’s Chat pane

- search files with Box MCP
- fail the search

LLM did not finish the search above (took very long time like 5 minutes). Then, the LLM has not responded anymore.

### Expected Behavior

LLM replies

### Screenshots / Screen Recordings

### Operating System

MacOS

### Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.43 (Universal)  
VSCode Version: 1.105.1  
Commit: 32cfbe848b35d9eb320980195985450f244b3030

### For AI issues: which model did you use?

- Opus 4.5: used for calling Box MCP
- Auto: used after that

### Additional Information

What I have tried:

1. Restart the Cursor
2. Change Cursor accounts
3. Implement solutions described in: [Cursor takes too long to respond](https://forum.cursor.com/t/cursor-takes-too-long-to-respond/144896)
4. Re-install the Cursor MacOS App

### Does this stop you from using Cursor

Yes - Cursor is unusable

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<div class="post-metadata">

**Author:** ![Kiminori\_Isaka](https://avatars.discourse-cdn.com/v4/letter/k/5fc32e/32.png) [@Kiminori\_Isaka](https://forum.cursor.com/u/Kiminori_Isaka)\
**Post date:** [December 22, 2025, 4:59am UTC](https://forum.cursor.com/t/bug-cursor-never-respond-after-failing-to-use-box-mcp/147003/2 "2025-12-22T04:59:25Z")

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I close this issue since LLM begins responding after a while.

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**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\
**Post date:** [January 13, 2026, 5:00am UTC](https://forum.cursor.com/t/bug-cursor-never-respond-after-failing-to-use-box-mcp/147003/3 "2026-01-13T05:00:13Z")

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Closed on January 13, 2026, 5:00am UTC

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