Someone know how export the .mhpkg file of metahuman? UE5.6.0

This is happening even with a clean project that only has a Metahuman. I don’t know what it is, I don’t understand what could be wrong, and I can’t find any tutorial or anyone talking about this, other than Epic’s documentation

do I also need to activate the last option? “Editor symbols for error correction”

its 50gb man ;c