UE 5.1 Android AR camera not displaying on HandheldAR project

[Fus360]

First of all thanks for your time, i had a project that derived from HanheldAR default project on 5.0 and was working correctly, once it started the scanning enviroment process u could see the camera and interact with the enviroment and place the Product Asset.

So this morning i decided to move it to 5.1, i had to reinstall the NDK and SDK in order to work properly, and once i was able to succesfully package and compile the android apk, I go to test the app and the camera is no longer showing, i mean the app an AR session does read the camera cause u can see that detetects planes and lets u place objects but u can’t see the camera background on the screen its just a black background, So i wondered that maybe was the Android Camera Player plugin. I enabled, but still get the same behaviour.

So then i did go and Test the Default project in Unreal engine called HandheldAR, i packaged and compiled the .apk and does have the same behavior as on my custom project, no camera displaying just a black enviroment.

Anyone have the same behaviour? Any help?

[Ziumper]

Hello i have the same issue , I have found this in my logs, even if the application have permissions when i see it inside my phone settings it still have a problem to render. Maybe different ar core version required, or something else has changed

LogPlayLevel: UAT: 12-09 20:32:04.309 11578 11578 D UE      : [2022.12.09-19.32.04:309][338]LogAndroidPermission: PermissionHelper_onAcquirePermissions android.permission.CAMERA 1 (1), Broadcasting...
LogPlayLevel: Warning: UAT: 12-09 20:32:04.310 11578 11578 D UE      : [2022.12.09-19.32.04:309][338]LogOutputDevice: Warning:
LogPlayLevel: UAT: 12-09 20:32:04.310 11578 11578 D UE      :
LogPlayLevel: UAT: 12-09 20:32:04.310 11578 11578 D UE      : Script Stack (0 frames) :
LogPlayLevel: UAT: 12-09 20:32:04.310 11578 11578 D UE      :
LogPlayLevel: UAT: 12-09 20:32:04.311 11578 11578 D UE      : Ensure condition failed: oldValue == newValue [File:D:/build/++UE5/Sync/Engine/Source/Runtime/Core/Private/HAL/ThreadingBase.cpp] [Line: 189]
LogPlayLevel: UAT: 12-09 20:32:04.311 11578 11578 D UE      : oldValue(0) newValue(1) If this check fails make sure that there is a FTaskTagScope(ETaskTag::EGameThread) as deep as possible on the current callstack, you can see the current value in ActiveNamedThreads(1)
LogPlayLevel: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogStats: FPlatformStackWalk::StackWalkAndDump -  0.030 s
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: === Handled ensure: ===
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error:
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: Ensure condition failed: oldValue == newValue  [File:D:/build/++UE5/Sync/Engine/Source/Runtime/Core/Private/HAL/ThreadingBase.cpp] [Line: 189]
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: oldValue(0) newValue(1) If this check fails make sure that there is a FTaskTagScope(ETaskTag::EGameThread) as deep as possible on the current callstack, you can see the current value in ActiveNamedThreads(1)
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: Stack:
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E88519C4 libUnreal.so(0x000000000CE3F9C4)!IsInGameThread()  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E9238560 libUnreal.so(0x000000000D826560)!UObject::ProcessEvent(UFunction*, void*)  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E5F6A730 libUnreal.so(0x000000000A558730)!void TScriptDelegate<FWeakObjectPtr>::ProcessDelegate<UObject>(void*) const  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E5F6A3E0 libUnreal.so(0x000000000A5583E0)!void TMulticastScriptDelegate<FWeakObjectPtr>::ProcessMulticastDelegate<UObject>(void*) const  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E5F8A820 libUnreal.so(0x000000000A578820)!FAndroidPermissionDynamicDelegate::Broadcast(TArray<FString, TSizedDefaultAllocator<32> > const&, TArray<bool, TSizedDefaultAllocator<32> > const&) const  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071E5F8A640 libUnreal.so(0x000000000A578640)!Java_com_google_vr_sdk_samples_permission_PermissionHelper_onAcquirePermissions()  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071F940001C base.odex(0x000000000002B01C)![Unknown]()  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error: [Callstack] 0x00000071F940001C base.odex(0x000000000002B01C)![Unknown]()  []
LogPlayLevel: Error: UAT: 12-09 20:32:04.342 11578 11578 D UE      : [2022.12.09-19.32.04:342][338]LogOutputDevice: Error:
LogPlayLevel: UAT: 12-09 20:32:04.344 11578 11578 D UE      : [2022.12.09-19.32.04:344][338]LogStats:                SubmitErrorReport -  0.000 s
LogPlayLevel: UAT: 12-09 20:32:04.344 11578 11578 D UE      : [2022.12.09-19.32.04:344][338]LogStats:                    SendNewReport -  0.000 s
LogPlayLevel: UAT: 12-09 20:32:04.344 11578 11578 D UE      : [2022.12.09-19.32.04:344][338]LogStats:             FDebug::EnsureFailed -  0.035 s

[anonymous_user_85b53b76]

Having trouble with this too, am trying to use the template as well. I’m getting the planes detection as well however I can’t seem to display the camera feed

[sweet2k4]

I have the samme issue. any ideas how to solve this?

[LazyKozy]

I have the same problem on my Pixel7. It worked in 5.0, but in 5.1 it doen’t render the camera overlay, even if I had bEnableAutomaticCameraOverlay turned on.
Is there any solution?

[PuiacVirgil]

Hey guys! Same here, looking to see why…

[Edoren]

I’m having the same issue, for the moment I’ll stick with 5.0

[Casper_AP]

Same problem here, got it working in 5.0.3 though.

[LazyKozy]

Hi all,
Epic seems to have confirmed this issue. Please vote up that

The Unreal Engine Issues and Bug Tracker

[LazyKozy]

I’ve verified the AR Camera overlay display on Android devices in the latest ue5-main branch.

[Di-Shiper]

Its working?

[lmzamora]

5.1.1 still not working, tried to build the 5.2 from source but it never ends to compile

[Di-Shiper]

I’m pretty sure it’s easy enough for EpicGames to fix this bug, but it’s like they’re ignoring us! Because of this, I could not defend my thesis on the exam!

[lmzamora]

go back to 4.27, it work there unless you have a project advanced like me and now you cant downgrade it
Edit:
I think I found an solution so far to 5.1.1, go to this post please

Render in main pass AR (Android)

for 5.1.1 I find these 3: M_ScreenSpacePassthroughCamera M_PassthroughCamera M_SceneDepthOcclussion I dont know wich one was the one faulty one I just modify them and after “apply” the changes rollback them this seems to force the material to be build correctly. know I have the doubt of how many other material need to be “modified” to fix them to find them you need to change the setting of the content bowser

[Di-Shiper]

It works, but now my camera is upside down!

[lmzamora]

maybe your app has the screen set to reverse portrait.

check this

[Di-Shiper]

Everything is correct in the settings.

[Di-Shiper]

I created a clean project, it works correctly. Then I compared the settings in the new and in my project. I set the values and everything worked!

[louisyonge1]

I solved the same problem by upgrade to UE5.1.1 from UE5.1.0. Give it a try.

[hadibeiki]

i have the same problem but my camera faced the texture and not show my room

i use unreal 5.2