Here's the image
Loading Image
So its a simple 2d game, which uses spine2d animation system. The characters are downloaded via Asset Bundles and loaded in the scene. The issues is, the character loads fine sometimes and on the other they appear like in the screenshot above. Even after it has been downloaded.
If the material is missing than usually the sprite should appear pink, but this is not the case
Using Unity 5.6.1 and spine runtime is 2.3