Unfortunately the Corona Image Editor “Tone Mapping” and other post fx are not saved into the file as images, but only as setting due to .crx’s unique file structure.
The workaround I found, is where you save your file via 3dsMax’s common output option, and selected .exr there and add all elements.
This way, all your elements will be there, ( “Beauty” as well), and your post processing will be applied too, the Post Manager will be able to import every element.