I don't recall saving the loaded panel after the error messages, but as it was weeks and many attempts ago, cannot say for certain.
The Preferences >> Config Profiles dialog has an option to display the profile selector during startup was what I couldn't make work. As I wrote in the first message, I saw it only once, and that was after loading in the new panel file and from a cold start.
Again, I can't tell you the exact steps, but every attempt I made before hadn't made it appear. Maybe it had something to do with no connected hardware, or the wrong connections defined, but there was nothing to indicate those issues might prevent the profile selector appearing. That's why I thought it might be a bug, or at least that clearer help information might be needed.
