Getting sound but just black screen on non-Qualcomm/Adreno devices?

Development Platform & Builds Mobile
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Hey Unreal Community,

hope someone here can give a hint to my problem as I`m slowly running out of ideas. We build an AR app for Android using UE 4.22 and things are runnnig great on all devices using a Qualcomm chipset aka Adreno GPU. Today we extended our testing-devices and it seems that on Samsung/Huawei Phones which have a Mali GPU we get a black screen as soon as the first 3d-content should render (Splashscreen working), sound is played in background so app has not crashed apparently.
As the problem occurs before the augmented reality part starts, I guess ARcore is not the bad-guy in that case… Has anyone here encountered a specific problem with Mali-GPUs and is there anything special to check for that platform?

Thanks,

Marco

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The only way to get it to work on Mali GPUs was to disable “Mobile HDR”. Strangely Mobile HDR was working in another APP I tested on Mali GPUs so it must be a combination of that and another setting.