UITabBarItem does not register click on the icon

I have four UITabBarItem's. Each has a label and custom icon. My AppDelegate uses the UITabBarDelegate protocol and every click on开发者_运维问答 a tabbaritem is logged to the console so I can see what is happening.

The only way to select a tabbaritem is to click on the label. If I click anywhere else on the button area, including the icon, nothing happens at all.

Have you come across anything similar?

---

Well, I found the issue. Whenever a tab was clicked and a new view was programatically inserted, that view was placed on top of the tabbar, but since it's background was transparent I could not see it. So half of the tab bar was covered by another view. By making sure to bringSubviewToFront: the problem could be solved. Thank you everyone who tried to help.