[1.23]Artillery Firebase bug

Hi all !

I was playing a match aginst AI on Acheloos

  -Me playing as soviets
  -American AI
  -Wehr AI
  -Wehr AI

When I tried to build an Artillery Firebase, this happened :
http://yfrog.com/jkohmygawdsovietfirebaeisj

I'm using a skin pack

Thanks !

Could you post your warnings.log?

ok