ios - Nothing shown at tab bar controller items when storyboard reference is added -

i have tab bar controller , there view controllers attached it. of view controller names , corresponding items show @ tab bar. problem occurs when try add storyboard reference it. nothing shown @ tab bar particular item(storyboard) when run it. although shows on ui design.

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notice 3rd item (the storyboard reference) invisible. also, invisible storyboard reference works. meaning, if click on invisible place takes me proper storyboard.

i have seen answers here.

refactoring storyboard works. don't want use it. refactoring storyboard creates storyboard reference anyway. , works perfectly. when create storyboard reference, doesn't work , stays blank.

now, how should add storyboard reference tab bar controller shows name , icon?