I made my own ladder cause i couldnt find one long enough and tied it to the func_detail entity. I put it in my map put in the usual stuff, the func_usableladder, set up the start and end points, and put down 3 info_ladderdismounts each for the top and bottom. When I go to climb up the ladder, nothing. But i put in no clip and go to the top of that ladder, and I can stick to it and come down. What am I doing wrong?