XF 2.0 Custom option missing

Lukas W.

Formerly katsulynx
@Chris_D I can't really tell if this is a bug or I am simply to stupid to set it up right, but whatever I do, my custom option doesn't appear on the option page.

I've created a new option under User options as on/off checkbox with a boolean value, default 0. The full configuration is here:

Both, the entry for the option and the option_group_relation are created:

And if I access the option via direct url, "User Options - 1000" is still set as expected.

But the option is missing...