Hi there I cannot update my DTK from Big Sur Beta 1 it came with to the now released Big Sur from the Mac App Store I have tried a few ways Software UpdateIt shows as an update - An error dialog popup shows - Error title: "Download failed" body: "An error occurred while downloading the selected updates. Please check your internet connection and try again." - Note. I have tried to reset defaults in the link in the left which says updates are managed 2 Big Sur Installer- I login to Mac App Store with my Apple Developer ID - I download Big Sur via Mac App Store - Big Sur Installer opens - After running the install for a while - An error dialog popup shows - Error title: "An error occurred preparing the update" body: "Failed to personalize the software update. Please try again" Also I cannot update Xcode Download and open Xcode 12.1 .dmg file An error dialog popup shows - Error title: "Loading a plugin-in failed" body: "The pug-in or one of its prerequisite plug-ins may be missing or damaged and may need to be reinstalled"Note. I have a Big Sur bootable USB drive but the recovery mode (holding down restart) is different now and I don't see the option to boot from it. I tried to reinstall macOS beta without that USB drive but it fails there too (says something about an internet connection Is something wrong with my DTK and how do I restore it?