When I use the function Export All… in Files, the Unreal generate a 3d object with your materials, but when I import the generated 3d object for another project, Unreal breaks and I have to close it. How to I export a level for another project?
Hey FelipeKrad,
The Export All option has experienced a few bug fixes and changes since this question was originally posted. I recommend giving it a try in a later version of the engine, such as 4.12.3, and then letting us know if you are still experiencing any issue.
Have a great day