The feedback app keeps timing out on me while trying to post a sample for you to reproduce. Our Airship sample is having this issue. I created a branch that reproduces it without needing to actually have any kind of config. Steps: clone https://github.com/urbanairship/ios-library/tree/xcode26-crash Open Airship.xcworkspace Run Airship Sample target on a simulator It should crash in the App deletate: _ = URLSessionConfiguration.default