i just test compiled a part of my map to test the light and the sky
and then i found a bug .... and i just started on the map
i found a skywalk bug:( :( :( :(

http://dodmaps.1go.dk/dod_midway0001.jpg
http://dodmaps.1go.dk/dod_midway0002.JPG
http://dodmaps.1go.dk/dod_midway0003.jpg

i dont know if u can see it but im in air
and in hammer it looks like this

http://dodmaps.1go.dk/hammer.JPG

what shall i do ??

its very hard to see what u mean, but i dont think you are walking on sky
if you mean that there seems to be invisible brushes on the ground, i would check or just re-vertex those triangles. I've found that two or more weird angles that meet at a point can make hammer do strange things like that

Open up your .map and look how it loos, vertexed shapes can sometimes become deformed after you export from rmf to map.

make sure you use a grid and that your triangle points are on it.

If ever thing looks ok could you tell we the exact compiler you are using please?

thx ill just try to look in the .map

i use zhlt253-17 as compiler

The tools in that compiler set should be fine ... guess it's vertex manipulation that is the problem.