This crash is already mentioned in the Release Notes of the iOS SDK at:
https://developer.amazon.com/public/apis/earn/mobile-ads/ios/docs/release-notes
Unfortunately it's not "a low number of crashes". Sometimes we register peaks of hundreds of daily crashes. Yesterday broke a new record with 750 crashes related to this issue.
Amazon, please fix this.
It's unacceptable (and unprofessional) if an ads SDK crashes an app because of a network issue.