I set these permissions to the group admin:
godmode.admin
godmode.invulnerable
godmode.lootplayers
godmode.lootprotection
godmode.toggle
godmode.untiring
When I activate the god mode using /god, all players and bots receive god mode
Edit:
Now I don't know anything. I tested again and it's not happening anymore...
If it happens again I will let you know