ACF Date Based wp_query

I’ve been trying to order these exhibitions based on the end_date custom field created with Advanced Custom Fields. I’m not able to properly get this working. I need the most recent dates first. I need to also only get posts with the exhibition_status of past. For the life of me I can’t get this working and the below code is just the latest non working interation.

How to output custom post type title on custom page with category next to it?

I have a website for an organisation, and I created a new page for the leadership team. I ran a query, looking for the “member”-type that have the category of “Leadership”. So far, when I output this on the page, it works fine. I also have child categories of “President” and “Secretary” that I want to display beside each leader’s name. However, as soon as I call get_the_category(), everything gets messed up, and only one result is output, and the President category somehow disappears and the post with the category of “President” gets “Secretary” displayed next to it.
This is the relevant code: