Issue Summary

Card front details (labels, due dates, members, Custom Fields, and other badges) fail to display on some or all cards on a Trello board. Only the card title is shown on the card front. All data is present and visible when the card is opened. The issue is inconsistent and affects different cards for different users viewing the same board simultaneously. Refreshing the page temporarily resolves the issue, but it can reappear.

Steps to Reproduce

1. Open a Trello board in a browser tab with cards that have labels, due dates, members, and/or Custom Fields configured.

1. Leave the board tab open in the background without refreshing.

1. Return to the tab after a period of time.

Note: Reproduction is inconsistent. It can happen without step 2 (inactivity)

Expected Results

Loading the board should load all the card's elements such as labels and due dates.

Actual Results

Elements on the card front sometimes doesn't load

Workaround

Refreshing the page can sometimes resolve the issue, though it can fail again, requiring another refresh. Alternatively viewing the opening the card will display the information as expected.