i added a CB Field

title: gamertag
name: cb_gamertag
default value: blank
required: yes
display field in profile: yes on line 1
searchable in users list: no
user read only: no
show at registration: yes
published: yes
size: 0
length: 0

then i add that to my default list. but when i view my list, i get this result "No users in this list", that with a blank page.

however, when i remove "gamertag" from my list, everything else shows up.

i really want to have this to work because im running an xbox gamer community where gamertag pretty much is their online gaming identity.