Help/Support UIAlertController closing automatically

[ByNiggs 17 iPhone 6s Plus 13.4.1]

Hey guys I'm using and iPhone 6s Plus running iOS 13.4.1

So basically I'm new into Theos/Logos and the objective-c syntax. I do have a background in other programming languages and can make my way through documentation (btw apple sucks at documenting imo). I choose Critical Ops as the app to test in, because why not lol. Basically I hooked into UnityAppController and the applicationDidBecomeActive method. Here I tried doing a simple alert box. I tried first with UIAlertView but then noticed that it was deprecated. Naturally I started using UIAlertController. I made my whole alert box and tried displaying it with the rootViewController I grabbed from the UIApplication argument that this method provides. It display for a second and then disappears, any help?

My Tweak.xm

%hook UnityAppController
- (void) applicationDidBecomeActive:(UIApplication *) GameUIApplication {
    NSLog(@"Hooked into UnityAppController.applicationDidBecomeActive.");
    
    id rootViewController = GameUIApplication.delegate.window.rootViewController;
    
    UIAlertController* popupAlert = [UIAlertController alertControllerWithTitle:@"My title" message:@"My message." preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction* okButton = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action)  {
        NSLog(@"Pressed ok button on popup.");
    }];
    [popupAlert addAction:okButton];
    
    [rootViewController presentViewController:popupAlert animated:YES completion:nil];
    
    //UIAlertView* popupAlert = [[UIAlertView alloc] initWithTitle:@"My title" message:@"My message." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
    //[popupAlert show];
    
    //UIWindow* mainWindow = [[GameUIApplication windows] firstObject];
    
    %orig(GameUIApplication);
}
%end

 

Video