UE5 Android UI flickering & other rendering problem

Development Rendering
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1

Hi, Team. I have built and set up my project on Android devices, and I’m struggling with two problems.

  1. The UI flickers as seen in the video. It only happens during the first operation of the app. If I close it and relaunch it, the flickering goes away.

  2. The objects are culled by distance(It seems like it is culling by distance, as seen in the video) but I have not applied such settings. I have not placed the cull distance volume yet, and the LOD settings are set to auto. This only happens in Android. In IOS it works fine.

Hope someone can help me with solving the problem :smiling_face_with_tear: I have been trying to solve them for like several weeks…

for additional information that you might need to help,

I have tried with the following devices

  • Samsung Galaxy S20 Ultra
  • Samsung Galaxy Note 9
  • Samsung Galaxy Note 10

In Android Studio, I have installed the following
Android SDK

  • Android API 33
  • Android API 32
  • Android API 31
  • Android API 30

Android SDK Build-Tools 33’s following versions

  • 28.0.3
  • 29.0.2
  • 30.0.2
  • 30.0.3

and the following NDK versions

  • 21.1.6352462
  • 25.1.8937393
2

What Android device are you using? Can it handle this rendering capacity?

3

I have tested with Galaxy S20 Ultra, Note 10, and several other devices. Is it possible that some objects far from the character are not rendered at all (and it looks like LOD is applied) because of the rendering capacity?

4

I solved the problem thanks to . Mobile HDR, Instanced Stereo, and Mobile Multi-view were the causes. In my case, setting them as follows solved the problem.

Instanced Stereo - False
Mobile HDR - True
Mobile Multi-view False

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