Sprites stored via referencing in ScriptableObject not getting loaded when using AssetBundles

I've encountered a weird issue with AssetBundles and sprites. For some reason sprites that are stored like this:
ScriptableObject
|____________Sprite (Reference)

Are not getting loaded properly. Their name is displayed correctly, when used in game, but the sprite itself is white (null) and missing material as well.

Does anyone know what can be the cause of this?
Asset Bundle Browser shows they're bundled properly, and included in the asset bundle.

This is on Unity v.2017.3.1f1.

 

Seems like the texture from the loaded sprite is missing. Can't figure out why.

 

After a bit of debugging:
1. Asset is loaded correctly from AssetBundle;
2. Afterwards AssetBundle is unloaded with Unload(false);
3. Asset added to some collection (Dictionary);
4. Scene transition occurs, dictionary is intact, assets & textures are correct; (Debug outputted from OnSceneLoaded)
5. Nothing modifies the collection;
5. Accessing Dictionary with loaded assets -> Assets texture is missing.

Why?

 

Literally, one second after OnSceneLoaded and the resource is gone. I've added coroutine with the yield, inside OnSceneLoaded.

Does SceneManager also unloads asset bundle resources that are marked with Unload(false) what the F*** is this?

Edit: Tested without unloading asset bundle, same result.

 

Okay, found out the reason. It's freaking Sprite Atlases, that doesn't properly serialize / deserialize via Asset Bundles.

 

It was already on by default.

 

Legacy Sprite Atlas works just fine though. So I guess, it's better to stick with it for a while.