My map causes tf2 to crash-to-desktop

Hello everyone, i am currently working on my first map and a problem has come up, that i am not able to solve :

I changed my skybox from a big box surrounding the map into a proper one.
old skybox : http://steamcommunity.com/id/bacooooon/screenshot/3263170274438722899
new skybox : http://steamcommunity.com/id/bacooooon/screenshot/3263170274438724891
If i go to spectator and noclip to fly around the map, everything looks normal except for purple wood and water textures and nothing crashes. But when i join a team, spawn and then try to moe forward, the map instantly crashes(sometimes i don't even have to move for it to crash).

Compile log (i compiled with everything set to normal and no hdr ) : http://pastebin.com/ahraXHLk

What shows up in the console when loading the map : http://pastebin.com/EH0LY42W
As you can see there seems to be a problem with the cubemaps, but building them again didn't solve the problem.

Thanks for any help in advance.

SPAMSPAMSPAM said:

Sometimes spawn door parenting causes this bug.

Click to expand...

I removed all spawn doors, but it still crashes. But thanks for the reply.

Lampenpam said:

The fall-of distance of many light entities are set incorrect. I doubt that is the issue though, but you might wanna fix that.

Since you crash on spawn, maybe the the spawns are stuck? You should always place spawns slightly above ground

Click to expand...

All spawns are 8 units above the ground.I didn't change anything related to the spawn, wich worked fine before the bug apeared so they are probably not the source of the Crashes. To be sure i raised the spawns, but it still Crashes

The map now works, after i have removed the cubemaps. How can i close this thread ?