The attributes currently allow you to skip adding an img/video and instead provide a mutable image. This mutable image shows up fine in most of the pages, but they show up blank in the "pack opening" sequence.

Could you add support for a "backup image" or "mutable image" to the pack opening as well?

For example in Mecha World if you open a pack your mechas show up blank because we use "body_img" instead of "img".