Forever move and resize sprites (animate city background)

Hello everyone!

I’m developing a game and trying to create animated city background. I want to make an illusion that houses are moving far away(by srinking them). So, what I need is just move and shrink node to center, then just place it where it started and repeat that action forever. I tried to use sequence and group but all of my sprites just disapearing and nothing happening

Please help anyone

class GameScene: SKScene, SKPhysicsContactDelegate {
var background = SKSpriteNode(imageNamed: "background.png")

var house1Left = SKSpriteNode(imageNamed: "House1Left.png")

override func didMove(to view: SKView) {
    self.anchorPoint = CGPoint(x: 0.5, y: 0.5)


    house1Left.position = CGPoint(x: -self.frame.size.width/2, y: 0)

    let move = SKAction.moveTo(x: 0.0, duration: 2.0)
    let resize = SKAction.scale(by: 0.1, duration: 2.0)
    let group =[move, resize])

    let resetPosition = SKAction.move(to: CGPoint(x: -self.frame.size.width/2, y:0), duration: 0.0)
    let resetSize = SKAction.scale(by: 10.0, duration: 0.0)
    let resetGroup =[resetPosition, resetSize])

    let sequence = SKAction.sequence([group, resetGroup])

    let runAction = SKAction.repeatForever(sequence)