Frozen xref layers show up and are selectable

[beardking]

I am having an issue with AutoCAD 2015 that is confusing me. I have an xref that is the base plan for a building I'm working on. In that base plan there are tons of different layers that I have turned off for use in creating my elevations for that building (leaving just the exterior wall information visible). When I select the base plan to move it for the different elevations, all of the layers become visible and my osnaps can "snap" to points on the frozen layers. Is there a system variable that I haven't found that can turn off this capability?

Thanks in advance.

[Maverick91]

Are you turning these layers off, or freezing them? You've said both here. Are you actually turning these layers off (or freezing), or are you simply isolating layers?

[Tom Beauford]

What vertical are you using? Is the base plan intelligent objects or ones created with vanilla AutoCAD? Is the base plan a block? Only time I turn layers off is when isolating layers, freezing works so much better.