@RobDraw wrote:
With all of the ways to control visibility and knowing nothing about what you have tried, we will be playing a guessing game. My game starts with the basics but I don't want to be insulting because you are a BIM Manager.
So, why don't you share what you have tried so far?
All visibility and filter was flagged, and the 2 files are new with all visibility on, so I thought there was a problem.
So i rechecked all after your message, i found that in visibility options of imported categories of the linked model one layer was turned off, for an inexplicable reason. I think a misprint of a precedent .dwg with same name in the Template.
I appreciate your sarcasm, but you know, sometimes everyone make a mistakes
. So the solution is yours, have a nice day.

@Sahay_R wrote:
@marco.defina - go into VG>>Revit Links and make sure that the Display Settings for the linked file are overridden to By Linked View.
PS - on a totally unrelated point - please do not make a habit of importing DWG files into Revit - linking them is a safer option for the health of the model.
With linked dwg (685mb of ACIS) Revit was extremely slow. By importing in a separate Revit model and then link this model in the main model, i have a normal speed of Revit and i work better.