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Card Mirroring Creates a Link Card Instead of a Regular Card

Pho_123

I’m on a paid workspace Trello plan. When I click on Mirror from the list of actions on a card and select another board, the card’s URL is added to the new card’s title as a link card instead of a regular card on the other board.

I have confirmed the boards are both on the paid workspace. I tried the card mirror yesterday and today and still have the same issue. I have verified that I have admin access to both boards. Any ideas?

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Brittany Joiner

@Pho_123 can you explain what you're expecting to see? I believe that's what mirror should do - on the new board you'll see a mirrored version of the original card, and when you click it it opens the original card.

Caity

Hi! Can you please try refreshing the board that should have the mirror cards on it and let me know if they display correctly after that?

Pho_123

Hi Caity,

I refreshed the board with the mirror cards. Here are two screenshots of the mirror card. As you can see, it adds the URL to the card's title.

I followed the instructions that are posted here: https://support.atlassian.com/trello/docs/mirroring-cards/ Screenshot 2025-01-16 at 2.12.10 PM.png

Screenshot 2025-01-16 at 2.11.34 PM.png

Rasmus Wulff Jensen

The issue is that the name of the mirror is not a mirror, but an URL. I actually do not see this behavior (I see the name, but in the data behind the name is the URL, and if you then convert the Mirror to a real card it end up with the URL and name)... Secondary, if you look in the Board Activity, the Mirror is also reported as a card with this URL (+ the issue that the activity is "createCard" and not the expected "mirrorCard" activity type)

Pho_123

Hi @Caity

I found out what the cause of the issue was. This may be a bug. On a few of my boards, Under Automation>Rules, I have rules that apply a label to a new card added to a board or a list.

When I disable all rules that add a label to the card on the destination board and then mirror a card to the destination board, the card no longer has a URL in the title but the name of the mirrored card.

Also, the same goes for a card that is mirror to the same board. Disabling all rules that add a label to the card fixes the issue.

Screenshot 2025-01-16 at 4.09.38 PM.png

@Brittany Joiner @Rasmus Wulff Jensen

Rasmus Wulff Jensen

Good find.. yes, that sounds like a bug to me.

But in general I do not understand why the name is this URL. There are dedicated technical fields ("cardRole" and "mirrorSourceId") to keep track of the org. Card so not used for that.

Malin Hunter

I'm having the same problem. Initially the card shows as a mirror card but as soon as I click on it it becomes a link with no details on the back of the card.

philip_6ks2gn

I am also getting the same problem. If I remove the automation rules I have set up in the list I am mirroring into, it works as intended

Caity

If an automation rule is adding things like labels to cards automatically, that can force the mirror card into a regular card. You can undo that by following these steps:

Remove the label or other information
From the board view, hover over the mirror card without clicking on it
Click on the pencil icon
Click on "Convert to Mirror card"

If you're impacted by this, I highly recommend subscribing here, where we'll post any updates regarding this issue: https://jira.atlassian.com/browse/TRELLO-927

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