Map editing itself

Hi guys,

I was starting mapping and a strange bug happened
So on hammer i had this :

Everything is fine
I closed hammer and went back on it, everything went wrong, wall moved like this one :

I fixed everything, and after compiling, walls/displacement went wrong on css :

I don’t understand what can make this, everytime i try to fix, the problem come back again, it’s hard to go forward x)

I hope someone has an idea of this problem :confused:

concave brushes will corrupt whenever you reload the map.

Thanks :slight_smile:

you may need an exorcist

To make sure you don’t create a concave brush by accident, hit ALT + P, and check for any ‘invalid brush / solid’ (can’t remember the exact name on the top of my head.)