Did the minimum MacOS version change to 10.15 in the LTS version? I have an old build machine sitll on 10.14 for reasons. Until recently, everything was just fine. For a while now my builds for MacOS fail for no apparent reason. Today a short error message flashed by (but it's not in the console) that IL2CPP for Apple Silicon requires at least 10.15 I changed nothing in my build settings. I have been updating the editor whenever a new version came out, assuming that LTS means nothing will break. I swear, Unity is becoming more and more a badly cobbled-together collection of parts, some of which are well-maintained and some of which are pretty shoddy.