KVNProgress make app freeze with Webview

[florianhenonin]

What where you trying to do
I'm displaying KVNProgress when Webview is loading.
Dismiss when finish load.

What actually happened
Only on iPhone 5s with 11.5 iOS version, app freeze !
No freeze when I comment KVNProgress.show(withStatus: "general_progress_dialog_message".localized)

How to reproduce the issue
In ViewController with Webview, add this code :
`func webViewDidStartLoad(_ webView: UIWebView) {
KVNProgress.show(withStatus: "general_progress_dialog_message".localized)
}

func webViewDidFinishLoad(_ webView: UIWebView) {
    KVNProgress.dismiss()
}`

Details
Only on iPhone 5s with last 11.4 iOS version