@AlanTheBeastYou are welcome to test a new release of fpcupdeluxe that has been updated to allow a better install of Ultibo on various systems.https://github.com/LongDirtyAnimAlf/fpcupdeluxe/releases/tag/v2.2.0khttps://github.com/LongDirtyAnimAlf/fpcupdeluxe/releases/download/v2.2.0k/fpcupdeluxe-x86_64-darwin-cocoa.zip
Usual corruption is not that usual.Please run fpcupdeluxe from a dedicated directory that is not priviledged. E.g. make an Ultibo directory on your desktop, copy fpcupdeluxe into it and run from there.