LNPopupController: User Interaction conflicts

Description

I have a slider (MPVolumeView) at the bottom of my container view witch does not respond to user interactions.

Steps to Reproduce

If I don’t present the popupBar, just push the controller, the slider respond. If I present the popupBar and open the container view controller by tapping on the bar, the slider does not respond.

Device, OS and Xcode Versions

Xcode 9, ios 11.2.2, iPhone 6S

Code

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        // KO: Slider does not respond
        /*
        let items = self.album.items
        playViewController.itemsToPlay = items
        let item = indexPath.row - 1
        playViewController.itemToPlay = item
        rootNC.presentPopupBar(withContentViewController:playViewController, animated: true, completion: nil)
        playViewController.sender = self
        playViewController.convertToPCM()
        */
        
        // OK: Slider respond
        let items = self.album.items
        playViewController.itemsToPlay = items
        let item = indexPath.row - 1
        playViewController.itemToPlay = item
        
        //rootNC.presentPopupBar(withContentViewController:playViewController, animated: true, completion: nil)
        
        playViewController.sender = self
        playViewController.convertToPCM()
        
        self.navigationController?.pushViewController(playViewController, animated: true)
    }

Screenshots

Slider does not respond

Slider respond