Xwalking issues

so i have tried both on crazyclient and nillys but it just wont work. it works like voer lava and shit but when i try to xwalk through walls on lost halls boss it wont work. everybody else does it but it wont work for me for some reason. any fix or idea why im unable to do so?

what im doing is walking then pressing x and dragging it over to center of the screen holding it like that for 6-8sec while still holding W and then i just let go my mouse.

im doing it on windows 8.1 with flashprojector 26 and 13.

just like in the hall boss,you cant xwalk if you are standing in front of the wall that generated.You can ONLY XWALK through the walls if you are FAR from the wall.Use hall as an example.If I want to xwalk after boss,i will walk to the another end from the generated wall,then press X for 7-8 second,and you walk pass it