Troubleshooting the Mirror Power-Up for Trello

Here's a list of common issues you might encounter when using Mirror and how to fix them.

Mirror troubleshooting checklist

Having trouble with Mirror? Not to worry, there are a few things you can check pretty quickly to get the Power-Up working right again:

  • Make sure the sync account is an admin on all Trello boards you want to mirror cards between.

  • Check that the Mirror Power-Up is installed on all boards you're mirroring cards between.

  • Are all boards within the same Trello organization? You won't be able to mirror cards to boards within other organizations.

  • Do you have more than one Unito Power-Up installed on the same Trello board? You might be experiencing what's called an "authorization loop." Check below for a step-by-step guide to resolve this.

Fixing the authorization loop

An authorization loop can happen when more than one Unito Power-Up is installed on the same Trello board. In order to fix this, you'll first need to remove one of your two Power-Ups. Don't worry, you'll still be able to create both mirrors and flows even if you only have one Unito Power-Up installed. After removing a Power-Up, you'll need to re-authorize the remaining Power-Up.

Go to your Trello board and click on Power-Ups.

Click on Settings under the Mirror Power-Up.

This will take you to the Mirror Power-Up page, where you'll click on Settings again.

Click Authorize account. Once the Power-Up is re-authorized, you'll be good to go.

How to clear sync account data

You might need to clear sync account data when you want to change the account you use with your Power-Up. To do this, you'll want to reach your Power-Up settings, much like if you needed to re-authorize your Power-Up. Instead, though, you'll see this menu, where you should click on Edit Power-Up settings.

Finally, click on Clear sync account data.

If you want to switch the account you use with Mirror, make sure you're logged in to Trello with that account.

Note: You might not be able to clear sync data this way if the person who used to run Mirror left your Trello organization. This is a security measure. If this is the case for you, please reach out to us so we can give you the ability to switch sync accounts.

I can’t find the board that I would like to Mirror to

Mirror will only give you a list of boards available within your Trello team. If the board is within your team and you still can’t see it, make sure that the sync account is a admin of that board.

Card isn’t syncing

This might happen because a sync already exists between the two boards that was created with Sync. For now, it’s not possible to mirror cards between boards that are already synced.

Another reason could be that the mirrored card was deleted. If you delete a mirrored card and then try and re-mirror the same card, we will not re-sync the card. This is part of our deletion policy.

A video guide for setting up Mirror

Still having issues? Reach out to the team here!