Not an SDK bug but an error when I tried to log into this forum. “An error occurred: the security key is not owned by the user” pops up any time I try to use the “log in with a passkey” option on the login screen. The browser UI shows a successful passkey authentication, but then the forum shows that error and doesn’t log me in. iOS 26.6, Safari.
I’m able to log in just fine if I put in my username and password and THEN authorize the passkey on the next screen, just not if I try to use the passkey directly in the login form. Strangely, if I look in my account settings, it says I don’t have a passkey set up (but I remember setting it up, and it’s right there in the Apple Passwords app! And the forum accepts it if I use it after putting in my password!)