UE Crashes building

Have you imported anything lately? Anything you might have added that could effect it?

Hello guys, I’ve been usign UE 4.8 (it updated to 4.8.1 a week ago) but today he decided to not build my projects. When the swarm goes to 100% and it begins to build UE crashes. Sometimes UE crashes when get 33% building, sometimes UE crashes immediately when the build begins (after Swarm gets 100% and end his process). idk what is happening, yesterday UE was working perfectly, but today my epic Launcher updated and this problem came to me.
Someone help me please!

Hello Pankuma and thank you to reply me! alt text

All I imported do UE were .fbx files, textures files (targa and .png) and collections downloaded on marketplace.

I’m attaching a screenshot with my library.