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.

Saving multiple fields (dropdown and text) in custom metabox

I have seen this question asked a bunch but nothing seems to work. I have a simple metabox within a CPT that needs to save two values. It needs to save a dropdown of pages and a url text field. I can get the text field to save and display but not the drop down. My class is being called on initialization. I think it has something to do with the $dropdown_args variable but I’m not too sure. I can see it saving in my database but it just doesn’t display the selection after saving. The description metabox saves and displays fine, it’s the landing page one that needs help. I have posted all my code and any help will be greatly appreciated.