Bug: Confirm dialog disappears as soon as activated

I have TokenView and TokenDelegate. When select key is entered (WatchUi.KEY_ENTER event) TokenDelegate will launch another view called ConfirmDelete, which is a confirmation dialog. Everything works fine in Simulator, but on real device ConfirmDelete dialog goes away before a user clicks any button. 

TokenDelegate:

    function onKeyPressed(keyEvent as KeyEvent) as Boolean {
		var key = keyEvent.getKey();
		System.println("kp " + key);
    	switch (key) {
    		case WatchUi.KEY_DOWN:
    			navigate(true);
    			return true;
    		case WatchUi.KEY_UP:
    			navigate(false);
    			return true;
    		case WatchUi.KEY_ENTER:
    			deleteAccount();
    			return true;
    		default:
    			return false;
    	}
    }
    
    function deleteAccount() as Boolean {
    
        var sel = AccountModel.model.getSelected();
    
    	if (sel != 0) {
				WatchUi.pushView( new WatchUi.Confirmation("Delete " + sel["a"] + "?"), 
				new ConfirmDelete(), WatchUi.SLIDE_IMMEDIATE );
				return true;
		}

    	return false;
    }
    

ConfirmDelete:

class ConfirmDelete extends Ui.ConfirmationDelegate
{

	function initialize() {
		Ui.ConfirmationDelegate.initialize();
	}
	function onResponse(value) {
	
		if (value == CONFIRM_YES) {
			var sel = AccountModel.model.getSelected();
			if (sel != null) {
				var ind = AccountModel.model.getIndByObj(sel);
				System.println("byobj: " + ind);

				if (AccountModel.model.deleteAccount(sel)) {
					
					AccountModel.model.store();
					
					var newacct = AccountModel.model.getAccountByInd(ind);
					if (newacct == null) {
						newacct = AccountModel.model.getAccountByInd(ind - 1);
					}
					
					var menu = TokenDelegate.createMenu();
					
					if (newacct == null) {
			        	AccountModel.model.selected = "";
					}
					else {
			        	AccountModel.model.selected = newacct["a"];
//				    	WatchUi.switchToView(new TokenView(), new TokenDelegate(), WatchUi.SLIDE_DOWN);
					}					
				}			
			}
		}

		return true;
	}

}

class ConfirmReceived extends Ui.ConfirmationDelegate
{
	function initialize() {
		Ui.ConfirmationDelegate.initialize();
	}

	function onResponse(value) {
		
		AccountModel.model.selected = "";
		var menu = TokenDelegate.createMenu();
		WatchUi.switchToView(menu, new MenuDelegate(menu), SLIDE_UP);
			
		return true;
	}

}

Simulator video

Garmin tactix-delta-solar video