I am also facing the same issue i am using videosdk that uses webRTC internally and as soon as i archive a build after adding the package my app simply crashes on IOS real device nothing happens on Simulator app runs completely fine on simulator but crashes on real device as soon as flutter engine gets initialised.

Here's the warning in XCode i thought i can ignore it but it causes the application to crash straight as soon as it gets launched without any descriptive error log and error was pretty hard to find the project was large and i had to do about 5-6 days of debugging to find out that this was the culprit. Haven't found any other issue yet related to it.