UITableView cells shift upwards?

This is driving me nuts. I have a UITableView w/ constraints =0 to leading, trailing, and top/bottm of safe area. The tableview is constrained exactly the same was as other TableViews in my app- but on this controller specifically it shifts upwards so the cell is butted up against the navigation bar. Any ideas as to what's causing this??

Should spacing should look like this. Gray space between navigation bar and TableViewCell.

Error state - no gap between navigation bar and tableview cell.

UITableView cells shift upwards?
 
 
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