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Intermittent error: "Loading CSS chunk failed" on Trello web

Muhammad Khoirul Yahya
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January 28, 2026

Description
I occasionally encounter a Trello web error where the page fails to load with the message:Error: Loading CSS chunk 83909 failed

This appears randomly and has happened at least twice. Reloading does not always fix the issue.

Steps (observed)

  1. Open Trello boards page

  2. Page shows "Something's gone wrong"

  3. Error indicates CSS chunk loading failure

Expected behavior
Trello should recover gracefully or reload updated assets.

Actual behavior
Page becomes unusable until cache refresh or later retry.

Environment

  • Browser: Chrome (macOS)

  • OS: macOS

  • Network: stable

Notes
This looks like a frontend asset / CDN cache inconsistency issue after deployment.

Screenshot 2026-01-15 at 16.04.08.png

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DEPLOYMENT TYPE
CLOUD
TAGS
AUG Leaders

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