I have a rule set to add a named checklist to a card when added to a certain list. It is only showing one of the checklist items. I also have it automated to add the same checklist to linked cards; it shows all of the correct items on the linked card.
@Chris you need to specify what checklist you want to copy in your command. I'm guessing you have many "Needed Info" checklists. You can specify the source card by selecting the bullseye when adding your action:
I'd suggest entering the card link to ensure you're definitely pulling from the correct card.