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Android - Textures Break After Returning From Background

I'm porting my GearVR application to Daydream (Lenovo Mirage Solo). The game runs perfectly, but when I take the headset off and then put it back on, all the textures turn black. After a delay (1 - 20 seconds), the textures come back. Once I've done this once, every subsequent on/off of the headset works without any issues. Sometimes, the textures all change to one specific texture, it's hard to tell though because that texture is mostly black :/

Here's everything I've done to try and solve this:

  • Upgrade from 4.18 -> 4.19

  • Start a new project and migrate assets over

  • Reimport the textures

  • Recreate the materials using those textures

  • Package without using a pak file

  • Read the logcat/logs... nothing unusual

I have ported a different game over to Daydream and it did not have this issue. I don't have a clue of how to debug this further.

Does anyone have any idea what could be causing this? I'd appreciate any guidance or ideas of where to look. The game looks like trash when every texture is black for 1-20 seconds.


Product Version: UE 4.19
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asked Jun 04 '18 at 08:45 PM in Packaging & Deployment

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