My Tailscale was broken for the past month and I only just fixed it yesterday, and today this patch is released that would have made it a non-issue.
Updating my BIOS caused the issue. The main problem was that Tailscale's behaviour was very poor in this case. It simply got stuck "Starting" and never provided any error information.
The worst was when I had to Google how to delete a contact (I think it was the contacts list view, or something very similar), I have to swipe it to the side, then a big red delete button appears?? But dont swipe the wrong way because then it's something else?
It's probably different now, I ditched the Apple boat long ago.
Updating my BIOS caused the issue. The main problem was that Tailscale's behaviour was very poor in this case. It simply got stuck "Starting" and never provided any error information.