Zoom sdk presents black screen in iOS App

I am having a serious issue regarding the iOS zoom SDK, I am using pushKit to wake up the app via voip notification and then starting CallKit, when the users accepts the call, zoom sdk is initiated and then displays a black screen to the user, but the other side of the call can see the first also when the second party of the call opens the camera the first party also doesn't see the second and this is applied also on the audio so the zoom meeting is not working at all. Can we have a discussion or possible fixes for the sdk ?