Am I the only one facing the personal signing issue?
SIP and Full Security is on, will share soon the fix
Still works for me in System Settings. What issue are you running into?
I’ve seen quite a few people run into the “Failed to personalize the software update” error when updating macOS.
You can back up your Mac with Time Machine, then erase your Mac completely and run all the updates again. Finally, restore from your Time Machine backup.
Some people report that this could be a hardware issue and the problem may persist with future macOS updates. So if your Mac is still under warranty, take it to the Genius Bar as soon as possible.