Open at login never works?

Hi, something odd about my startup. BTT never starts up when my mac re/starts. I've got start at login selected and I have confirmed a BTT item is in the users and groups prefs. I've noticed that periodically I need to clear out redundant items presumably written to the startup option in users and groups, but there's always one (presumably) valid item, but it never seems to actually start the app on re/start/s.

Other than that love the app.

Thanks for any help, t