How to reproduce the issue (maybe with less steps already happens but just in case)

1. Open the app using an Android device
2. Log in as a student
3. Open a forum, write a post attaching a video recording and then an audio recording, post it
4. Go to Private files: record a video and an audio.
5. Check that the second video doesn't have audio or in some devices you cannot record it and there is a message saying "Can't record video during voice calls"
   

As mentioned there are two behaviours:

• it allows the second video but the audio is not recorded - that happened using the following Pixel devices:
  • Pixel (version 12) - "physical" device
  • Pixel 6 Pro (version 15) - cloud web mobile testing platform
  • Pixel 8 (version 14) - cloud web mobile testing platform
• it doesn't allow the second video to be recorded - that happened using the following Samsung devices:
  • Galaxy S8 (version 7) - cloud web mobile testing platform
  • Android tablet samsung (version 11) - "physical" device

Comments:

• "physical" device in the sense that I had it in my hand
• cloud web mobile testing platform => I accessed the device online, the device is real too
• If you kill the app and open it again, then go to private files you can record a video (and it has audio)
• After recording the video you can already see that there is no audio, so this doesn't seem related to the way the file is saved.
• This doesn't happen on an iPad.