Does anyone know how to duplicate a card so that changes made in one list on one board changes the same card on a different list in the SAME board?
You could use Unito power-up to do it.
https://unito.io/blog/sync-trello-cards-with-unito-mirror-power-up-for-trello/
This post includes other options.
https://help.trello.com/article/1097-mirroring-cards
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