This appears to work if I call my mechanism using my own custom right: 2025-08-21 17:17:45.206 Db SecurityAgentHelper-arm64[42339:2271ef] [xxx:Controller] Calling update() 2025-08-21 17:17:45.206 Db SecurityAgentHelper-arm64[42339:2271ef] [xxx:LoginView] calling update() 2025-08-21 17:17:45.206 Db SecurityAgentHelper-arm64[42339:2271ef] [xxx:LoginView] [MacOS] view() got view type Identity and Credentials. 2025-08-21 17:17:45.206 Db SecurityAgentHelper-arm64[42339:2271ef] [xxx:Controller] setViewType() but doesn't work in the desktop login screen.

Upvote. I also have this issue.

Thank you for your excellent help as always, Quinn. I really appreciate it. I'll probably just live with the warnings. I had Swift set to 6.0 before, and spent a lot of time spinning in circles trying to get the threading model to be compliant with structured concurrency checks. Thanks for pointing me in the right direction. I've filed FB19093833 as asked.

Thank you for your response, Quinn. I'll do #3.