Issue Summary

This is reproducible on Data Center: (yes)

There is a known issue with sorting Trello cards by due date on iOS devices. When using a board button or automation to sort cards in ascending or descending order of due date, some cards may not appear in the correct order.

Steps to Reproduce

1. On mobile IOS, create a test list
2. Create a board button (or schedule automation) to sort this list by due date ascending.
3. Add a few cards to this list (e.g., ten)
4. Add different due dates to every card
5. Click the button to sort the list

Expected Results

All cards are displayed correctly in the correct order, depending on their due date.

Actual Results

Some cards are sorted in the wrong order (based on their expiration date), and don't show the same results as the web.

Workaround

• Close the Trello board on iOS and open it again. Then, all cards will be displayed in the correct order: OR,
• Run the automation twice.