The latest successful release of the map is 2.3.0, and I am now developing 2.4.0.
Basically, with each 0.x.0 release, I add a new Monster (Skeletal Mesh).
The Monster I’m adding has 20,000 polygons and many animations.
Going back to the 2.3.0 snapshot solved the cooking problem, and I’m redoing everything again, importing the same model as before and everything else…
This already happened to me in version 2.3.0, and I went back to snapshot 2.2.0 to fix it. It’s very frustrating when these kinds of errors happen and UEFN doesn’t give you any clues as to what’s causing the error.