I've removed the Siri button from the touchbar the day I got my MacBook, more than a year ago, and it never appeared again. Might be a problem on your system? U

I've removed the Siri button from the touchbar the day I got my MacBook, more than a year ago, and it never appeared again. Might be a problem on your system? Usually resetting the NVRAM/PRAM solves this kind of problems, but it's basically black magic.