Reference File - Can not snap, highlight, identify elements

I have attached nested reference files into the model space of a drawing but when I hover the mouse over the elements nothing is displayed in the information bar (bottom of view). I can not snap / select the elements either to find out which file, level etc the elements belongs to. I have had a look at my reference settings and 'locate, snap etc' have a tick alongside them. I can change the colours, line styles etc in the level manager.

Do I need to edit the configuration variables?

Microstation Connect 2023

Version 23.00.00.108

Thanks

Matt