Group instance not working

I must’ve pressed a wrong key or something. I have a mesh in a group. When I instance it, the instance is red instead of dark gray and when I render, it doesn’t render. Any ideas?

as I remember the group instance object must be defined in another file
then you append it in another master file !

happy bl

I’ve been using group instances in the same blend file with no issues. Not sure what happened there :frowning: