Using resource_queue.gd script not working on Android

[nyenye]

Godot version:
Godot 3.0.2

OS/device including version:
Android 5.0 Lolipop / Xiaomi Redmi A4 (GPU: Adreno 308)
Android 7.0 Nougat / Xiaomi Mi6
Android 8.0 Oreo / LG Nexus 5X (GPU: Adreno Adreno 418)

Issue description:
When loading a scene in background, the textures are shown in black.

Steps to reproduce:
Export project to android, open apk. Should see black space (which should be a texture) over colored background. Button on the right, is to switch between two different scenes.

Minimal reproduction project:
BackgroundResourceLoading.zip

[Zireael07]

Lemme guess, Adreno devices again?

[nyenye]

@Zireael07 Sh*t.... the GPU is Adreno 308.

But is it really the issue? If I load the scene with the load() method (on the main thread, which would lag the transition between scenes), the texture shows correctly.

Here is a screencapture video. As you can see, the blue screen shows a larger texture (which could give some problems depending on the GPU) which is loaded with the load() function. Then on the red screen, the texture which is loaded with the resource_queue.gd script from the docs, its black, yet it's smaller than the last one.

Thanks

[henriquelalves]

Probably related to #21609