UIBarButtons disappeared in iOS 9.2 -

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i have upgraded 1 of apps under development ios 9.2 , have found navigationbar uibarbuttons have disappeared , not shown on navigation bar.

btw: i'm using uibarbutton custom class called bbbadgebarbuttonitem here

update 1

here snippet code used add uibarbuttonitem 

// add search button uiimage* searchbtnimg = [uiimage imagenamed:@"searchbarbutton"]; searchbtnimg = [self ipmaskedimage:searchbtnimg color:[uicolor pddappselectediconcolor]]; cgrect frame = cgrectmake(0, 0,searchbtnimg.size.width,searchbtnimg.size.height); uibutton* searchbtn = [[uibutton alloc] initwithframe:frame]; [searchbtn setbackgroundimage:searchbtnimg forstate:uicontrolstatenormal]; [searchbtn addtarget:self action:@selector(_searchcontent) forcontrolevents:uicontroleventtouchdown]; self.searchbarbuttonitem = [[bbbadgebarbuttonitem alloc] initwithcustomuibutton:searchbtn]; self.searchbarbuttonitem.shouldhidebadgeatzero = yes; self.searchbarbuttonitem.badgevalue = @"0"; self.navigationitem.leftbarbuttonitem = self.searchbarbuttonitem;

update 2

i see following error message <error>: cgcontextsetfillcolorwithcolor: invalid context 0x0. if want see backtrace, please set cg_context_show_backtrace environmental variable.

and answer seems apple bug

i have figure out, imagecatalog random reason have make custom barbuttonitem unassigned unknown reason.... stupid thing ;(

also, general note have noticed opening xcode project ios9.1 on newer xcode 7.2 or vice versa got of added images imagecatalog in unusigned state , app couldn't see until fix in imagecatalog.


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