Hello -
How can I stop AutoCAD (LT 2009, for now) from deciding that layer properties are overridden when I have not actually overridden properties for those layers?
For example: I have a drawing with, say, >100 layers and 20 layer tabs, each with viewports. I change the viewport layer properties for selected layers in some viewports. At some point later I notice that AutoCAD has changed the properties for ALL (or at least most) of the layers in some of the viewports to "overridden by viewport" and are highlighted blue (but the "overridden" properties all the same as the non-overridden properties for each layer that I did not override). So now if I want to change the global properties for a layer the properties will not change in any of the viewports where AutoCAD has changed the layer properties to "overridden".
This does not happen all the time, and I can't tell when it has happened until I open the layers dialog box for a viewport and see everything highlighted blue, so I don't know what I might have done that might trigger this. (If this is a know bug that was fixed in a later version of AutoCAD, I would gladly upgrade.)
I will be grateful for any suggestions.