[4.8P3] Crash on level load from 4.7.6 to 4.8P3

I have converted a version of my 4.7.6 level to 4.8P3 and it causes the engine to crash on startup.

Callstack: dr3d1337_48p3_callstack Log: dr3d1337_48p3_log

Hi Dr3d1337,

The fatal error you’re seeing (Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\Core\Private\HAL\FileManagerGeneric.cpp] [Line: 605]
Invalid BufferCount=0) is one that was fixed for 4.8, and should be fixed by preview 3, so I suspect you’re experiencing a problem with conversion. If you still have a copy of your 4.7.6 project, try opening your copy in the 4.8 preview instead of conversion. Converting the project sometimes does strange things to blueprints.

If that does not work, one thing to try, and then I’d like new build output logs from you.

Delete from your Engine folder: DDC
Delete from your Project folder: Intermediate, Saved, Binary and DDC.
Restart your computer. Then migrate
your project to a new blank project in
the 4.8 preview.

Package as normal, and if it fails, please post your failed build output logs here.

Thanks!