SKSpriteNode is not running animation in SpriteKit

I have this class:

    class Explosion : SKSpriteNode {



    var gameScene : SKScene
    var explosionPoint : CGPoint

    init(_ gameScene : SKScene, _ explosionPoint : CGPoint){
        self.explosionPoint = explosionPoint
        self.gameScene = gameScene
        let size : CGSize = CGSize(width: gameScene.size.width * CGFloat(0.23), height: gameScene.size.width * CGFloat(0.23))
        super.init(texture: SKTexture(imageNamed: "Explosion_1"), color: UIColor.clear, size: size)
    }

    public func startExplosion(){
        self.position = explosionPoint
        gameScene.addChild(self)
        let animation = SKAction.animate(withNormalTextures: getFrames(), timePerFrame: 0.1)
        self.run(SKAction.sequence([animation, SKAction.removeFromParent()]))
    }

    private func getFrames() -> [SKTexture] {
        var frames : [SKTexture] = []
        for x in 1...12 {
            frames.append(SKTexture(imageNamed: "Explosion_\(x)"))
            let cat = SKTexture(imageNamed: "Explosion_\(x)")
            print(cat)
        }
        return frames
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    }

Now, this SKSpriteNode is supposed to be a gif, so I run the animation here:

    public func startExplosion(){
        self.position = explosionPoint
        gameScene.addChild(self)
        let animation = SKAction.animate(withNormalTextures: getFrames(), timePerFrame: 0.1)
        self.run(SKAction.sequence([animation, SKAction.removeFromParent()]))
    }

And I run it from the main SKScene like this:

    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        let touch = touches.first
        let touchLocation = touch!.location(in: self)
     
        Explosion(self, touchLocation).startExplosion()

    }

However, when the node is added to the scene, it doesn't actually run the animation. It stays with the initial texture. How do I make the node run the action?

I have tried assigning the explosion object to a variable and also tried using repeatForever, both failed. I also tried doing everything without using the custom class Explosion, like so:

   var explosion : SKSpriteNode!

    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        let touch = touches.first
        let touchLocation = touch!.location(in: self)
     
        explosion = SKSpriteNode(imageNamed: "Explosion_1")
        let lolsize : CGSize = CGSize(width: self.size.width * CGFloat(0.23), height: self.size.width * CGFloat(0.23))
        explosion.position = touchLocation
        explosion.size = lolsize
        explosion.zPosition = 100
     
        var textures = [SKTexture]()
        let atlas = SKTextureAtlas(named: "Explosion")
     
        for i in 1...atlas.textureNames.count {
            let name = "Explosion_\(i)"
            print(name)
            textures.append(SKTexture(imageNamed: name))
        }
        self.addChild(explosion)
        explosion.run(SKAction.repeatForever(SKAction.animate(withNormalTextures: textures, timePerFrame: 0.1)))
    }

However, it gives the same result. The only texture that appears is the initial one "Explosion_1". There is no animation.