solution?

Disclaimer: I do not know if this is in the correct thread, i am new to the community and none of the other threads seemed to fit the category i needed. Anyway, I am working on a map, where i have just started laying player clips on the top of buildings to stop players from jumping on them...

Well, at least i tried. How do i fix this? I first used packrat and then VIDE I added every custom content i used Sorry about my bad english