Recovering the description or card name that was changed
If someone changes the description of a card, it may appear that the entire description has been deleted. However, Trello tracks these changes in the
Troubleshooting
Identify and fix specific errors and common issues in Trello.
Re-inviting a person to a board
Emailed attachments show up as winmail.dat file
How to troubleshoot attachments in older versions of Microsoft Outlook
Bidirectional warning in code blocks
Identify bidirectional characters in Trello code snippets to make sure they're intentional.
Can't log in or access Trello
Power-Up isn't working
Submit a bug or improvement request
Troubleshooting Trello desktop and mobile