On a MacBook Air M1 (2020) 16GB with macOS 12.4 and XCode 13.4.1 (13F100) having the same issue - while developping a SwiftUI XCode is reporting an internal error and gets stuck... crashing the whole system. Swift Frontend going up until 100 GB (sic!). Should I downgrade XCode ? To what version? - Edit: After restart "Clean Build Folder" works. Then without any action after a few seconds the SourceKitService comes to live and starts eating Memory from 19 GB up till 110 GB and then disapears (crashes?). What the heck is going on here?