Hello,
Do You have configuration group called "global"?
You have to de-apply it
delete apply-groups global
Or You can de-apply it to lo0 only:
set interfaces lo0 apply-groups-except global
This configuration group provides some defaults like router-id/SSH enable/ etc. If You de-apply it altogether, You have to reconfigure everything manually under respective hierarchies.
HTH
Thx
Alex