Composer 1.5 unusable

[Marijn17s]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Composer 1.5 is completely bugged out. When prompting it anything it just does this and ends immediately after it.

Steps to Reproduce

Prompt composer 1.5 anything

Expected Behavior

Obvious

Screenshots / Screen Recordings

Operating System

Windows 10/11

Version Information

Version: 2.6.19 (system setup)
VSCode Version: 1.105.1
Commit: 224838f96445be37e3db643a163a817c15b36060
Date: 2026-03-12T04:07:27.435Z
Build Type: Stable
Release Track: Default
Electron: 39.4.0
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.22631

For AI issues: which model did you use?

Composer 1.5

For AI issues: add Request ID with privacy disabled

2ad037f0-e3eb-4ca7-b134-5b01cdf5f23e

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, this is a known issue with the Composer 1.5 model. It sometimes outputs garbled text or thinking tags instead of a normal answer. A few users have run into the same thing: Why does Cursor Auto mode display garbled text? and It keep writing ‘natural natural natural natural natural natural.

The team is aware of it. For now, as a workaround, switch to a different model like Claude or GPT instead of Composer 1.5.

Let me know if you see the same issue on another model too.