4.8 Shipping Packaging Assertion Failed

Hey guys, was working on my build earlier, came home and copied it over to my computer and ran a shipping build.
Turns around saying assertion and cooking failed about 5-10 minutes into the build. Never happened like this before?

Log: Dropbox - Error

Really need to get this fixed asap please

this is where it starts going wrong
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\Core\Public\Containers\Array.h] [Line: 678]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: Array index out of bounds: 216 from an array of size 0