Where does the bug appear (feature/product)? Cursor IDE Describe the Bug When using Composer 2 in Fast mode, the generated text sometimes becomes corrupted. Parts of the output contain garbled characters (e.g., �), making the content hard to read. Steps to Reproduce Enable Composer 2 Fast mode A…

I just updated Cursor and same issue happens with latest version Version: 3.0.16 VSCode Version: 1.105.1 Commit: 475871d112608994deb2e3065dfb7c6b0baa0c50 Date: 2026-04-09T05:33:51.767Z Layout: editor Build Type: Stable Release Track: Default Electron: 39.8.1 Chromium: 142.0.7444.265 Node.j…

Hey, this is a known issue with Composer 2 and Composer 2 Fast. It affects all CJK languages like Korean, Japanese, Thai, and more. The team is aware, and the Request ID has been accepted. For now, the workaround is to use GPT-5.4 or Gemini 3.1 Pro for tasks with Korean text. These models handle UT…

Composer 2 (Fast mode) produces garbled text / encoding issues

Support Bug Reports

Topic		Replies	Views
Composer 2 Fast: Korean UTF-8 broken in chat and agent edits (Composer 2 OK) Bug Reports chat , composer	1	120	April 12, 2026
Korean output is garbled only in Composer 2 Bug Reports chat , composer	0	25	April 13, 2026
[Bug] Korean text renders as ◆ symbols in Chat panel when using Auto model mode Bug Reports chat , auto-mode	1	53	April 13, 2026
Bug Report: Korean Character Corruption (U+FFFD) in Composer After Recent Update Bug Reports chat , composer	0	54	April 11, 2026
Unicode (Thai) garbled in Composer 1.5/2 and sometimes on Auto Bug Reports chat , windows , composer	2	89	April 22, 2026

Composer 2 (Fast mode) produces garbled text / encoding issues

Related topics