Why only one theater location listed for me

When I click on “Get Tickets” it only lists one theater that is 13 miles from me, yet there are multiple theaters much closer. Same as listed under “Near You.” I have it set to “My Location” which also shows my correct zip code so it’s not that. And it’s not the theater brand, because there is one of the same brand about 4 miles from me. How do I get it to show closer theaters?