This is a super-obvious product improvement. I'm shocked that an app as mature as Trello has that huge gaping hole. Is there an ETA that anyone knows of?
It is an ongoing issue for sure. I've been a heavy user for three years. There are generally very few product improvements, at least that are visible to the end user. The best one lately was the ability to collapse lists. I hope we get this one prioritized soon! Custom fields could be so much more powerful.
Here is a link to the open issue if you would like vote or comment on it. Maybe it will gain attention. https://jira.atlassian.com/browse/TRELLO-617
It can indeed be frustrating when you're unable to sort and filter on custom fields in certain platforms or applications. There are a few common reasons why this limitation might exist click