Odd bug in my world

[Nobby]

Hi everyone

For half an year I wasn't active. But yesterday I started a new age but within 1 h I had the first bug. Every time I switch the camera to 1st person my game freezes. If I look through the hole in the wall it happens again.
Can anyone help me? Blend file, logs and age files are here

Greetings McLayan

[dendwaler]

Everything stays black when i link in.
I could export the file but again it stayed completely black.

I will have a deeper look into the blendfile tomorrow.

[dendwaler]

Main reason that it stayed black after i linked in, was because of the wrong texturing of the sky.

After i deleted the sky object, i could link in and see something.

There are a few things wrong.

1) Do not use duplicated linked vertices as cluster groups.
The objects called " grassbecken" are build that way.
The rendering game engine can't handle this.

2)Do not use .dds files as textures but png or targa for transparents and jpeg with around 75% quality .for not transparents.

3) Do not use " a single pixel" to UV map a large sky.

[Nobby]

I'm sorry I completely forgot to thank you, you helped me much with your analysis .

But now I got the next error: Uru does not display a book correctly. Actually the book is nothing more than an mesh, no scripts: https://dl.dropbox.com/u/7404144/not_good.png

Does anybody know what I'm doing wrong? Blenfile and exported agefile: https://dl.dropbox.com/u/7404144/export.zip

Greetings Nobby