title: Transiently custom events are not logging into App insights with ruby sdk
body: <p>I have a ruby application and I'm using app insights ruby sdk for logging purpose. I have custom events defined and flushing these events at the exit of my application.</p>
  <p>I observe sometimes transiently few events were missing logged. No exception from appInsights as well.</p>
  <p>What could possibly be the chance of missing the events? I  tried googling if this sdk is having any issues. but no luck.</p>