I cannot create any new projects in XCode (reliably). I can MABE do it when restarting my M2 Macbook Air (macOS Sequoia) or when I plug in a monitor. Steps to create it: After restarting the mac, create a "macOS, command line tool, C++" project in Xcode (assuming the I can create it), quit Xcode. Create another project of the same type in Xcode (again), Xcode will freeze for a few minutes with the beach ball. After that, there is a window popup with the title: “Unable to create an open panel”, its content: “Try your operation again. If that fails, quit and relaunch the application and try again.” This bug makes Xcode unable to create a new project, or create a new C++ file in an existing project.