I am experiencing the exact same issue. Based on my testing, this bug was introduced in Xcode 26.4 and specifically triggers only in Objective-C + XIB projects. Pure Swift projects are working perfectly fine. Recently, I tried updating to Xcode 26.5, but the issue persists and remains unresolved. Currently, the only viable workaround is to downgrade and stick with Xcode 26.3. Hopefully, Apple will look into this and fix this compatibility bug for older project architectures (OC + XIB) soon.

Try the following path to delete all files. Download it again /System/Library/AssetsV2/com_apple_MobileAsset_iOSSimulatorRuntime/

目前要么只能下个Xcode14.2打包，要么只能让用户更新iOS系统。正常情况下，用户肯定不干。所以也只能重新下个编译器。到时候再围观了。 话说你用的是Swift写的项目吗？因为我发现我当天也有打包两个公司OC写的老项目。但是那两个OC编写的老项目并没有闪退。

早上找了半天，同事打包反而不闪退（xcode 14.2）。 我又拿过来真机调试(iOS 13.3 + xcode 14.3)，也不闪退。 但是一推到testFilght，下载后就闪退。 最后我把同一套代码，换了xcode 14.2，推到testFilght，结果是正常的。 可以断定是xcode 14.3 的问题。