Server Dedicated Server keeps crashing

[Krunch]

Since the latest update our dedicated server keeps crashing after a map change randomly...

We get this error in the logs:

[1747.10] Critical: appError called: SHA Verification failed for '..\..\ROGame\BrewedPCServer\EngineDebugMaterials.upk'. Reason: Bad hash
[1747.10] Critical: Windows GetLastError: The operation completed successfully. (0)
[1747.10] Log: === Critical error: ===
SHA Verification failed for '..\..\ROGame\BrewedPCServer\EngineDebugMaterials.upk'. Reason: Bad hash

I already reinstalled the server files and it still does it. Also seems to only do it on our Rising Storm server.

 

[crazy monkey]

don't use hanto,iwo,guadal 3 maps.
it's began to cause a crash in the update.
Let's wait for the fix of TWI

 

[Krunch]

Kobura-MCP crashes the server too.

 

[a_gunslinger]

Did they acknowledge the problem by chance?

 

[Cat_in_da_Hat]

I think it is random.
We had crashes after Racowice, Barracks, Der Iwan Ber and Gumrakstation.

 

[Paulchen Panzer]

Same here. 2 Crashes since yesterdays evening. Sunday we had one. Same on [~AJ~] Server.

So it is definitly not caused by Guadal, Hanto, Iwo Jima and Kobura cause i`ve had deleted these ones.

Crash .dmp
1. http://www.44id.de/bilder/unreal-v7258-2015.01.11-16.25.49.dmp
2. http://www.44id.de/bilder/unreal-v7258-2015.01.12-11.41.48.dmp

Other thing we discovered is a massive Lost of Players at once with "Invalid Packet" after the update which seems to happen randomly during the game.

 

[Yoshiro]

We put out a fix for this earlier today.