Hi, Thanks for the reply – I tried running that command but the problem persists. Here is the diagnostics report from Xcode: https://drive.google.com/file/d/1OyuTtcuRti5DsLM09O0YMdoQq946LaLM/view?usp=sharing It seems that Xcode Previews can't create a simulator correctly – it tries repeatedly but is unable to find the correct runtime. Additionally, the simctl script refers to version 1010.15 of CoreSimulator, but my current actual CoreSimulator version is 1048.