Hello, community. Starting from Xcode 11.4, libxml behaving differently in debug and release build, sometimes crashes. It works fine before Xcode 11.3 or in debug build. My project use libxml via a 3rd party library called Fuzi. Fuzi have't changed in months, so I don't think it's where problem lie in . I have spent months debugging this issue, but unfortunately not yet find the cause. I have created a demo project for reproducing this issue. https://github.com/kukushi/FuziCrash Any help will be welcomed.