Xcode 11 - XCUITest unable to typeText on UISearchBar

Our app has a UISearchBar as part of a UINavigationItem's titleView.

The element layout looks like this:

    Window (Main), 0x600001ab6060, {{0.0, 0.0}, {414.0, 896.0}}
      Other, 0x600001ab6140, {{0.0, 0.0}, {414.0, 896.0}}
        Other, 0x600001ab5ea0, {{0.0, 0.0}, {414.0, 896.0}}
          Other, 0x600001ab5f80, {{0.0, 0.0}, {414.0, 896.0}}
            Other, 0x600001ab5ce0, {{0.0, 0.0}, {414.0, 896.0}}
              Other, 0x600001ab5dc0, {{0.0, 0.0}, {414.0, 896.0}}
                Other, 0x600001ab5b20, {{0.0, 0.0}, {414.0, 896.0}}
                  NavigationBar, 0x600001ab5c00, {{0.0, 44.0}, {414.0, 56.0}}, identifier: 'Search'
                    SearchField, 0x600001ab5960, {{0.0, 44.0}, {414.0, 56.0}}, identifier: 'searchTextField'

The SearchField is accessible but sending `typeText` doesn't do anything. It prints this error on console.

    t =    82.89s             Failed: Neither element nor any descendant has keyboard focus. Event dispatch snapshot: SearchField, identifier: 'searchTextField'

The keyboard is open before sending typeText so i've no idea what's going on here. I tried using the Record feature to see what Apple does. Taping the Search bar with Record button causes it to crash with error

Timestamped Event Matching Error: Failed to find matching element

The implementation looks like this

        navigationController?.navigationBar.isAccessibilityElement = false
        navigationItem.isAccessibilityElement = false
        searchBar.isAccessibilityElement = true

        searchBar.accessibilityIdentifier = "searchTextField"
        searchBar.accessibilityTraits = [.searchField]
        navigationItem.titleView = searchBar