1 light not synced

I have 10 lights for my stairs. I turned all 10 off and back to auto and redeployed. 1 of them appears to be not linked. Can I add it to the group just by powering off and auto or do I have to redo all 10 of them?

There isn’t anyway to just add one of the lights. You can try redoing them but the sync function has been unreliable and may not work.