actually non is self illuminating, i am using just a hdri to light the scene and a few interior sphere light placed inside the pendant light but not touching and geometry or so. i love corona but something like this has to be labelled as a bug or something to fix, makes so sense a user has to amount to tricks and adding a separate map into matrerials to fix the issue and its not realistic either setting a materials gi to black, in real life a red floor for example will color a room,just how much is something is nice to be able to control in renders but to do this for each material is overkill