TableView disappears after segue unwind - swift

Question

I've spent the whole day trying to figure this out, would like some insight into what's happening here:
I have a custom UITableViewController that's embedded in a navigation controller, and it has a button that triggers a segue to a plain UIViewController.
The plain UIViewController has a button that unwinds to the TableViewController, as well as a "back" button that's given for free thanks to navigation controller.
Now the issue: When I segue from TableViewController to UIViewController, everything works. From UIViewController, if I press the "back" button, it winds back and the TableView is reloaded automatically. HOWEVER, when I press the button that is linked to #IBAction to unwind, it unwinds to the TableViewController but nothing shows up, not even an empty table.
My debug view showed that once I tried to unwind using my button (not "back), TableViewController came back on screen but its frame was super small and nothing was in it, so the black background of the navigation controller was showing, thus just a black screen where the table should be.
Can anyone tell me how to manually reinitialize the tableView or reset the TableViewController when I unwind? I tried tableView.reload() in viewDidAppear() and nothing happened, as I suspect the problem is the TableViewController itself not having the original frame as before segueing.
Link to screenshots with descriptions
TableViewController code:
class StatsTableViewController: UITableViewController {
//variable stuff
#IBAction func unwindToRoot(_ sender: UIStoryboardSegue) {
}
override func viewDidLoad() {
super.viewDidLoad()
self.getData()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
DispatchQueue.main.async {
self.tableView.reloadData()
}
self.getData()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return solves.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! StatsTableViewCell
cell.timeLabel?.text = solves[indexPath.row].0
cell.scrambleLabel?.text = solves[indexPath.row].1
return cell
}
//other stuff
}

Answer 1

Set Delegate Datasource Methods
//Add this two lines in viewDidLoad()
override func viewDidLoad() {
super.viewDidLoad()
self.getData()
//Add this line
self.UITableViewName.delegate = self
self.UITableViewName.dataSource = self
}

Answer 2

You are using this two methods in statusTableViewController
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "SelectionSegue" {
//Your code
}
}
#IBAction func unwindToThisView(sender: UIStoryboardSegue) {
// set Delegate datasource method
}
set outlet for unwindToThisView button to see the images
1.Click exit button for last ViewController
see Presenting Segues outlet for the Back Button
set action for back button