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Help - back template has a problem 3:source?

Click Edit, Cards, then Back Template. Search for {{3: Source}} and remove whitespace before Source so it becomes {{3:Source}}.

Edit: I’m not sure what 3 means here. Is it used by some add-on you use?

Thanks for your response.No Idea! this is not my own dec! Tried this but didnt seem to work unfortunately

You can either add the Source field or report the problem to the deck author.

See https://docs.ankiweb.net/#/editing?id=customizing-fields

‘:’ has a special meaning, so you shouldn’t use it in field names. If you click on Fields… in the editing screen and save, it should remove the ‘:’ for you, and then you’ll need to edit the card template to remove the ‘:’ from there as well.

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