Ok good find... no one ever found this bug but it is definetively there...
will be fixed in next release.
for the moment you need a template edit.. BUT you will have to revert this template at next release:
open template:
adv_gallery_categorybit_level1
find:
Code:
Content visible to verified customers only.
Attention you will find it twice!
replace
both instances with:
Code:
Content visible to verified customers only.
This was changed to make query lighter.. but it was not changed in template for users.
Luc