[Solved] User Field Search not Working

I added a Member Field called "AUG Local":

I listed 63 possible values for the field:

Then I populated the field with a value of "USA - Columbus, OH" for my user:

https://www.augforums.com/augforums/profile/timrodman/

But when I try to search for all members with "USA - Columbus, OH":

https://www.augforums.com/augforums/members/

I get this error:

Any ideas why I'm getting this error? Is 63 possible field values too many for a custom user field?