ios - PushViewController not animating -


i using code push viewcontroller:

let internetusagehistoryvc = uistoryboard(name: "usage", bundle: nil).instantiateviewcontroller(withidentifier: "internetusagehistorycontroller") as! internetusagehistorycontroller  internetusagehistoryvc.internetusagecardviewmodel = cardvm  self.navigationcontroller?.pushviewcontroller(internetusagehistoryvc, animated: true)

the navigation working animation not seem working. might related bunch of broken constraints have in screen navigating to... not sure...

has faced issue?... suggestions? thanks


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