BUG Nav-bar title, neither always center

In my code I programmed the title from nav-bar to be centralized via code:


And sometimes it works well, centralizing normally, but another times it appears a bug (I’m running in iPhone 4S, 5, and iPod 4th Gen.), making the title being moved to right, as the following example with the title “Funcionários”:


I inspected the interface and realized that the title is being moved to right adding automatically “right” and “left” properties, such as:

left: 159px;
right: 154px;


I need to solve this as soon as possible :confused:

Thanks in advance!!