title: specialized static crashing ios app
body: <pre><code>import Foundation
  import K
  
  @objc class KU: NSObject {
  
  static func setUpConfigs() {
      let productId = TNYEnvironment.sharedInstance().kProductID
      let url = TNYEnvironment.sharedInstance().kUrl
      K.sharedInstance.configureK(productId,
                                                 url: NSURL(string: url)!)
  }
  
  static func trackEvent(eventName: String) {
      let formattedEventName = eventName.lowercaseString.stringByReplacingOccurrencesOfString(" ", withString: "_")
      self.trackEvent(formattedEventName, properties:[:])
  }
  
  static func trackEvent(eventName: String, properties: [String: NSObject]) {
      let instance = K.sharedInstance
      instance.track(eventName, params:properties)
      instance.uploadEvents({})
   }
  }
  </code></pre>
  
  <p>Its crashing on ipa build, but works fine on debugger. I guess some issue with swift to objc code. Anyone had the same issue?</p>