XCode asset catalog causes NSImage to be unclickable

I'm having an issue where when my asset catalog have more than 2 images (all have @1x @2x and @3x and PNG format), my NSImage in my NSImageView cannot be clicked. Does anyone know why this happens?

Thanks in advance!

import SwiftUI

struct ContentView: View {
    @State private var window: NSWindow?

    var body: some View {
        VStack {
            Button("Open Window") {
                // Create and show the NSWindow
                self.window = NSWindow(
                    contentRect: NSScreen.main?.frame ?? NSRect.zero,
                    styleMask: [.borderless],
                    backing: .buffered,
                    defer: false
                )

                // Set up window properties
                self.window?.isOpaque = false
                self.window?.hasShadow = false
                self.window?.backgroundColor = .clear
                self.window?.level = .screenSaver
                self.window?.collectionBehavior = [.canJoinAllSpaces]
                self.window?.makeKeyAndOrderFront(nil)

                // Create an NSImageView
                let petView = PetView()

                // Add the NSImageView to the window's content view
                if let contentView = self.window?.contentView {
                    contentView.addSubview(petView)
                    
                    // Center the petView
                    petView.centerXAnchor.constraint(equalTo: contentView.centerXAnchor).isActive = true
                    petView.centerYAnchor.constraint(equalTo: contentView.centerYAnchor).isActive = true
                }
            }
        }
    }
}


class PetView: NSImageView {
    override init(frame frameRect: NSRect = .zero) {
        super.init(frame: frameRect)
        
        self.image = NSImage(named: "dog_idle-1")
        self.translatesAutoresizingMaskIntoConstraints = false
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
    
    override func mouseDown(with event: NSEvent) {
        print("woof!")
    }
}

I've tried changing the amount of images in my asset catalog and found that 2 is the maximum amount for my NSImage to be clickable. It suppose to print "woof!" when i click on it.