Crytek Export to Engine

MightyT

There aren't a lot of variables that can be entered for this option, but when exporting a level from sandbox to run in launcher.exe, end up with the majority of brushes and entities not getting included. Since there really aren't really many options in "export to engine" button, wondering what else affects the export. The individual layers are all set to visible and editable.
Using Version 3.4.1