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Slack: /trello failed with the error "invalid_blocks"

I've been using the Slack Power-up and Trello App for Slack in the same configuration with boards and channels for over a year.  On or around Dec. 28, I started getting an error -- /trello failed with the error "invalid_blocks" -- when trying to access some cards.


I receive notifications for cards created in a Slack Channel.  I then copy the link for the card and paste it into a new Slack message.  Prior to Dec. 28, the Trello App would retrieve card details.  Pasting in the link now results in no action at all.


I then attempt to use the /trello command, using the /trello [url] format.


Often this works. but sometimes I get the "invalid_blocks" error message I mentioned above.  I cannot narrow it down to when it will occur and when it won't.   I may have two notifications for cards created in the same list on the same board and the /trello command will return details of one card but give me the error message on another. 


Any ideas?  Thanks.

1 answer

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Vero Rivas Community Leader Jan 14, 2021

Hi @Robert Farmer 

    You can ask trello support HERE

    Trello team can help you better in this case.


Thanks.  I'll do that.

Like Vero Rivas likes this

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