Crash occurs in both @MainActor classes and functions on iOS 14

Crash occurs in @MainActor class or function in iOS 14

Apps built and distributed targeting Xcode 16 version swift6 crash on iOS 14 devices.

We create a static library and put it in our app's library.

Crash occurs in all classes or functions of the static library (@MainActor in front).

It does not occur from iOS / iPadOS 15.

If you change the minimum supported version of the static library to iOS 11, a crash occurs, and if you change it to iOS 14, a crash does not occur.

Is there a way to keep the minimum version of the static library at iOS 11 and prevent crashes?

Crash occurs in both @MainActor classes and functions on iOS 14
 
 
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