Drop of Screen Sharing after AVAudioSession manipulation

Meeting SDK iOS
1

Description
In our iOS application that uses Zoom iOS Meeting SDK, we experience unexpected screen sharing interruptions.

The application uses a custom meeting UI and performs device screen broadcasting via MobileRTCScreenShareService.
Additionally, the app actively uses Speech Recognition (SFSpeechRecognizer).

When screen sharing is active, and the app periodically reconfigures the AVAudioSession for speech recognition, screen sharing may stop unexpectedly.

Which iOS Meeting SDK version?
v6.1.10.17500

To Reproduce(If applicable)

  • Join a Zoom meeting using the custom UI.
  • Start screen sharing (device screen) via MobileRTCScreenShareService.
  • Start using SFSpeechRecognizer.
  • Periodically change the AVAudioSession configuration using the following code:
let audioSession = AVAudioSession.sharedInstance()
        do {
            try audioSession.setCategory(.record, mode: .measurement)
            try audioSession.setActive(true, options: .notifyOthersOnDeactivation)
        } catch {}

Screen sharing may stop unexpectedly with one of the following errors:

Live Broadcast to SAFE-T Screen Sharing
has stopped due to: Attempted to start an invalid broadcast session

or

Screen Broadcasting: Live Broadcast to SAFE-T Screen Sharing has stopped
due to: You have stopped screen sharing

Expected Result

Screen sharing should continue uninterrupted while using speech recognition and updating AVAudioSession, or the SDK should provide a documented restriction or recommended audio session configuration to avoid this issue.

Smartphone (please complete the following information):
Looks like it can be reproduced with all devices.
We used: iPhone 16, iPhone 12 with iOS versions 18.6.2, 18.5, 18.7 17.5