Hmm that's interesting, Eric. Does the card you're copying have any relevant info that you want to keep, such as comments or members? If there isn't any data that you would normally be asked to keep, the option to do so won't be present.
If you'd rather have us take a closer look at this, feel free to reach out at https://trello.com/contact and we can continue looking into this over email!
If you had to thrive a new habit during a lockdown, what would it be? Trello
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