Windows .exe Unleashed V1.1.1 crash

[Sircreeperlot10]

Every time I join a server I got errors which might be about rendering. Does anyone know what is causing this?
Pastebin : http://pastebin.com/7HJU8EUt

 

[Zxays]

I get exactly the same error when trying to connect to a server. The same map in singleplayer though causes no problems.
What version of the LightWeight Java Game Library is your ftb running on?

 

[Sircreeperlot10]

How do I find that out?
EDIT: I think I have 2.9.0 or 2.8.4

 

[Zxays]

If you didn't update it yourself you are on LWJGL version 2.4.2, that's the version Minecraft 1.52 is "shipped" with. But forget LWJGL, i've just found out that railcraft's steel/iron tanks are causing this issue.
There's a simple but annoying workaround for this: After you've launched ftb log in to a singleplayer world and log out, than you should be able to connect to the server without a crash.

I'll try and hope if can find a version of railcraft without this bug.

 

[Sircreeperlot10]

Thanks