Hello Trello team,
I am experiencing a bug on one specific board where card activity and comments are completely invisible on the web version. ALL my other Trello boards are working normally — this issue is isolated to a single board.
Affected board:
- Name: REVISÃO
- Link: https://trello.com/b/ZRolpGfi/revisao
- Board ID: 5b7d9fd37bd50d08228cc691 (created August 2018)
Symptoms:
- When opening any card on this board, the "Comments and Activity" section is completely empty, even though activity history exists.
- The "Hide/Show details" button is visible but toggling it does not reveal any activity.
- ALL my other boards show activity and comments normally without any issue.
Troubleshooting already performed:
- Tested on multiple browsers (Chrome, Firefox) — same issue on all.
- Tested in incognito/private browsing mode — same issue.
- Tested from a different computer — same issue.
- On the Trello MOBILE APP, older cards show activity correctly, but the most recent cards also do NOT show activity — so the issue affects both web and mobile for recent cards.
Technical details (API investigation):
- The Trello web app makes a GET request to fetch card actions and receives HTTP 449 with this error: "Encountered non-retryable error during query :: caused by :: hint provided does not correspond to an existing index" on collection trellis.actions, filtering by idModel = ObjectId('5b7d9fd37bd50d08228cc691') (the board ID).
- The identical API call works perfectly (HTTP 200 OK) for cards on my other boards (e.g., COMPRA DE MOTO 2, board ID 683a07621d863cc367756ddc, created 2025).
- This suggests a missing or corrupted database index in the trellis.actions collection for this specific old board.
This board was created in 2018 and the index was likely dropped during a database migration. Could you please rebuild the index for this board? This is critical for our workflow.
Thank you.
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