AR application keeps crashing when permitting camera rights!

Hello,

I'm trying to make a unity AR project. Using Unity 2019.4.5f1 (LTS) and the following packages:

I followed several tutorials, including the official Google quickstart and several using the Unity package manager. Ultimately I just have the scene as described in the tutorials: XR session, XR session origin, Cube and light. But I also used the HelloAR scene from Google. All different apprioaches result in the same error. Here is an image of the scene:

I use a Samsung Galaxy S10 as testing device, which is definitly supported. It has 1 front camera and 3 back cameras. When I launch the app, after the splash screen, I get the question to grand Camera rights too the app. If I deny permission the app does not crash and just shows the 3D scene and cube. But when I do grand permission the app crashes immediatly. Restarting the app after granting permissions also crashes the app after the Unity splash screen. I captured the error log with logcat:

08-20 11:37:34.418 11580 11649 E AndroidRuntime: FATAL EXCEPTION: UnityMain
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Process: com.BlueEngineering.AR, PID: 11580
08-20 11:37:34.418 11580 11649 E AndroidRuntime: java.lang.Error: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Version '2019.4.5f1 (81610f64359c)', Build type 'Development', Scripting Backend 'mono', CPU 'armeabi-v7a'
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Build fingerprint: 'samsung/beyond1lteeea/beyond1:10/QP1A.190711.020/G973FXXU8CTG4:user/release-keys'
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Revision: '26'
08-20 11:37:34.418 11580 11649 E AndroidRuntime: ABI: 'arm'
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Timestamp: 2020-08-20 11:37:34+0200
08-20 11:37:34.418 11580 11649 E AndroidRuntime: pid: 11580, tid: 11649, name: UnityMain  >>> com.BlueEngineering.AR <<<
08-20 11:37:34.418 11580 11649 E AndroidRuntime: uid: 10443
08-20 11:37:34.418 11580 11649 E AndroidRuntime: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
08-20 11:37:34.418 11580 11649 E AndroidRuntime: Cause: null pointer dereference
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     r0  69766544  r1  616c7567  r2  00000000  r3  00000000
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     r4  b2c95050  r5  ea143fc0  r6  b2c95050  r7  00000000
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     r8  a2719230  r9  80808080  r10 00000000  r11 00000000
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     ip  a2722890  sp  b5caab50  lr  a26e3ca7  pc  00000000
08-20 11:37:34.418 11580 11649 E AndroidRuntime: 
08-20 11:37:34.418 11580 11649 E AndroidRuntime: managed backtrace:
08-20 11:37:34.418 11580 11649 E AndroidRuntime:       #00 (wrapper managed-to-native) UnityEngine.XR.ARCore.ARCoreSessionSubsystem/NativeApi:UnityARCore_session_update (UnityEngine.ScreenOrientation,UnityEngine.Vector2Int)
08-20 11:37:34.418 11580 11649 E AndroidRuntime:       #01 UnityEngine.XR.ARCore.ARCoreSessionSubsystem/Provider:Update (UnityEngine.XR.ARSubsystems.XRSessionUpdateParams) 
08-20 11:37:34.418 11580 11649 E AndroidRuntime:       #02 UnityEngine.XR.ARSubsystems.XRSessionSubsystem:Update (UnityEngine.XR.ARSubsystems.XRSessionUpdateParams) 
08-20 11:37:34.418 11580 11649 E AndroidRuntime:       #03 UnityEngine.XR.ARFoundation.ARSession:Update () 
08-20 11:37:34.418 11580 11649 E AndroidRuntime:       #04 (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
08-20 11:37:34.418 11580 11649 E AndroidRuntime: 
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     at UnityEngine.XR.ARCore.ARCoreSessionSubsystem.NativeApi.UnityARCore_session_update (UnityEngine.ScreenOrientation,UnityEngine.Vector2Int)(Native Method)
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     at UnityEngine.XR.ARCore.ARCoreSessionSubsystem.Provider.Update (UnityEngine.XR.ARSubsystems.XRSessionUpdateParams)(C:\Users\j.bax\AR\Library\PackageCache\com.unity.xr.arcore@2.1.11\Runtime\ARCoreSessionSubsystem.cs:52)
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     at UnityEngine.XR.ARSubsystems.XRSessionSubsystem.Update (UnityEngine.XR.ARSubsystems.XRSessionUpdateParams)(C:\Users\j.bax\AR\Library\PackageCache\com.unity.xr.arsubsystems@2.1.2\Runtime\SessionSubsystem\XRSessionSubsystem.cs:131)
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     at UnityEngine.XR.ARFoundation.ARSession.Update ()(C:\Users\j.bax\AR\Library\PackageCache\com.unity.xr.arfoundation@2.1.8\Runtime\AR\ARSession.cs:349)
08-20 11:37:34.418 11580 11649 E AndroidRuntime:     at System.Object.runtime_invoke_void__this__ (object,intptr,intptr,intptr)(Native Method)

I also tried re-starting the phone and re-building the package for different API levels, all resulting in the same error.

I suspect it has something to do with the phones cameras not being selected properly? maybe because there are 3?

If someone knows the solution it would be greatly appreciated!