Reference none manage file

Hi all

We lost players an the support task for microstation is now on my bin.

Here the question I need help

When we add reference files, and we are under a manage environment, ( under projectwise)  usually user can hit ESC and they are present with a regular file explorer window to search none manage documents to reference them.

For some reason this window does not appear any more when user hit ESC

Anyone can help me figure out why?