diff --git a/CHANGELOG.md b/CHANGELOG.md
index 969c800..ee0b0da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Preserve original exit code in Windows PowerShell script wrapper when redirecting streams, ensuring ogcore receives failure status (e.g., CommandNotFoundException).
 - Prevent raw PowerShell CLIXML output from leaking into stderr on Windows when a command fails non-interactively.
-- Send `START_SCRIPT` webhook when a script is picked up by the agent, ensuring the UI correctly displays the "In Progress" trace state. Applies to both admin (`client=false`) and user-session (`client=true`) execution paths.
+- Removed the `START_SCRIPT` webhook entirely from the script launching process for both admin (`client=false`) and user-session (`client=true`) paths. This eliminates the race condition that caused duplicate traces in `ogcore`, as `ogcore` now marks traces as `IN_PROGRESS` synchronously.
 
 ## [8.5.6] - 2026-07-21
 ### Added