So my level packs didnt show up so I went in and changed the permissions. I changed every possible permission to 755 because I read thats what you have to do to get them to show. My problem is that the packs show up but when I click on them the screen turns black. I can still draw things but they fall like thet would normally but there is no ground or anything to stop the objects. Any ideas? Like amybe I shouldnt have changed anything?