Chartboost stuck on loadscene

I’ve integrate chartboost to my app.I’ve run chartboost example and it works fine .

So my problem is I have button that will load new scene when click on it , so i decide to call Chartboost.showInterstitial when click on it too .

but seem like it stucks on new scene and can’t touch anything , please helpp TT

I figure it out , it’s problem about init scene