Crash occurs for all players in medium-far range of the windmill multi-tile when it is completed or broken. Does NOT crash players very close to the windmill. I think the Frustum function is used when rendering at medium-far range.

Client Stacktrace Head:
java.lang.NullPointerException: Unexpected error
at net.minecraft.client.renderer.culling.Frustum.func_78546_a(SourceFile:37)
at net.minecraft.client.renderer.RenderGlobal.func_180446_a(RenderGlobal.java:704)
at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1347)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1259)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1062)
...

Level Stacktrace Head:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:420)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2739)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:426)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...

Link to entire crash report