Lightgroup via GUI missing entity ID

Dear all,

I’ve created a really simple light group:


this one works when I control it trough the button on the bottom of this view.

but when I create it it shows as following in the list:

and is thus unusable,
does anyone have an idea what could be wrong? I could template the group via the config and force an idea, but that really isn’t the point now is it?

Reload the browser. For some reason that always happens for any helper created in the UI.