SKSpriteNode: Handling collisions during SKAction

I am making a small game and now I am having the following problem.

I am triggering an action (type followPath) for a specific node:

let followTrack: SKAction = SKAction.followPath(ballPath!.CGPath, duration: ACTION_SPEED)
movingBall.runAction(followTrack)

      

        
        
        
      

    

But during animation, if a node collides with another (like a wall for example), the animation stops and there is no collision animation.

I've tried some things like:

func didBeginContact(contact: SKPhysicsContact) {
    var firstBody: SKPhysicsBody = contact.bodyA
    var secondBody: SKPhysicsBody = contact.bodyB

    firstBody.node?.removeAllActions()
    secondBody.node?.removeAllActions()
}

      

        
        
        
      

    

But also there is no collision (I am assuming since the speed is (0,0))

Is there anyway to handle this case? (I don't particularly need a quick answer, objective-C or a generic answer would be great too!)