Help with HXD.

I installed HXD and everything.I used a tutorial, but I'm still having trouble. I understand what they're telling me to do but I'm unable to find the pattern they're looking for which is "18 8A 2E 00 3B.". What am I doing wrong? Did they patch this? Do I need to bypass EAC after I hack customization?

Instead of 3B put 39 and replace everything like this:
FF FF FF FF 39