ERROR 789 Unexpected chunk

[rscarter]

I just started the Steam app and it started downloading updates to RailWorks.

When completed, I started RailWorks and attempted to run several native scenarios and each time I get the following error:

ERROR (789): Unexpected chunk
FILE: ../API\core/cFxException.h
LINE: 113

I deleted all the Blueprints.pak files to have the program rebuild them, but still get the same error. I can't run anything in RailWorks.

Does anyone have an idea how this can be corrected?
Thanks.

[email protected]

[sniper297]

I got the update last night, tried a couple of the free roams, no problems. Got a list of which ones are crashing? Might be scenario and/or route specific.