LINKED CARDS

[Donna]

This use to be called CONNECTED, the concept appears to be the same except we can no longer see all of what is displayed on the front of the cards - it appears to now be contained by only showing description header...is it possible to revert back as the details that you could see were very useful and kept awesome time contraints low?

[Nils Geylen]

Sounds like you're referring to link cards on the Free plan, which do only show a preview (like the description header) when linking one card to another.

This is different from card attachments (which you can reciprocally connect) but do not sync.

If you're on Premium, you can use mirrored cards to get the detailed, fully visible connection you mentioned. 

https://support.atlassian.com/trello/docs/mirroring-cards/