@jmuzzana - I believe you are not missing anything, This feature seems to be missing. There could be a workaround which might help you with this challenge. 1. Create a private board and add the same labels which are present on the original board and destination board. 2. Change the required labels setting of a private board so you can edit any topic without assigning a new label. Now if you want to move any topic to destination board it should go to private board first where you can remove the label you want and then can move to destination board. I hope this would be helpful for the time being.
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