It's a bit more complicated than the title, so here goes. Upgraded to MacOS 14 (from 13) and so installed XCode 15.1. I have a rather large C++ project that has a couple of smaller target dependencies inside the same project. When I open XCode I can build the project and it's probably about as fast to build as it was before. If I then attempt to build/run again, XCode becomes unresponsive and hangs for a long time, consuming 99.9% CPU. It'll build eventually, but it takes a very long time, even if it was just built. If you can click on the build log in time you'll see that XCode freezes for a few minutes, but stuff is happening - then the UI will update and you'll see it's done a few things (checking dependencies, building the build graph, etc), then the UI hangs again for awhile. EVENTUALLY it'll finish, but even then XCode is VERY sluggish. This doesn't happen if I switch to the smaller dependency projects. I can build those over and over. If I Force Quit the report always has "ExplorableContent" type stuff going on. It seems like it's gotten bogged down in updating the logging/report info in the Report navigator" (which is set to Local). XCode is obviously completely unusable like this, and I can't go back to 14. Any suggestions?