I just fell for the same thing... It seems dynamically created global layers don't create the objects on that layer?
I haven't tinkered with this feature yet but this is what I kinda hoped/expected actually. That I can basically create a Layout that holds something like menus in global layers, and then I can spawn in the layer whenever needed and remove it ezpz when I'm done menuing.
Good to see that recreate initial objects action does that, but I think it would be perfect if we could get a single action that just recreates all instances of all objects for global layers. Something like "recreate global layer"