Quest 2 - Android PermissionRequest dialog does not open

Hi all,
currently I am working on a vr project for the Quest 2 and since I have a VOIP implementation I need the users to give my app the permission to use the microphone.
When I boot the app for the first time I will get asked to set the permission - so that works just fine.
BUT I got the feedback from users that they will refuse that permission at first - basically because of them not reading the prompt and a “fear” for their privacy.
So now, as soon as the user is in the main menu I check if the permission was given - if not I display a dialog prompt to the user, describing why the app need the permission and for what it is used for.

Now my problem - I looked at this (Unity - Scripting API: Android.Permission.RequestUserPermission) and implemented it like its shown.
So the check works as intended, displaying the prompt whenever I refuse the permission but when I then press the button to open the permission dialog the app goes black for a split-second and then just goes back to where it was.


Code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
#if PLATFORM_ANDROID
using UnityEngine.Android;
#endif

public class AndroidPermissionManager : MonoBehaviour
{
    //  Instantiate this class to be used in any other component.
    private static AndroidPermissionManager _instance = null;
    public static AndroidPermissionManager Instance
    {
        get
        {
            if (_instance == null)
                _instance = (AndroidPermissionManager)FindObjectOfType(typeof(AndroidPermissionManager));
            return _instance;
        }
    }

#if PLATFORM_ANDROID
    private void Awake()
    {
        APIManager.Instance.OnIsLoggedIn.AddListener(CheckForPermissions);
    }

    void CheckForPermissions()
    {
        if(!GetMicPermission())
        {
            MenuManager.Instance.OpenMicPermissionMessage();
        }
    }

    bool GetMicPermission()
    {
        if (!Permission.HasUserAuthorizedPermission(Permission.Microphone))
        {
            return false;
        }
        else
        {
            return true;
        }
    }

    public void SetMicPermission()
    {
        Permission.RequestUserPermission(Permission.Microphone);
    }
#endif
}

TL:DR
I have implemented a button to set the permission in runtime but the dialog won’t open.

Is there anything I am missing? Do I need to pause the application first or is there something Quest specific I need to do to make it work?

Cheers and thanks in advance :slight_smile:

Edit: typo

Still no one that can help me?