I have recently been having some issues (using AutoCAD Map 3D) when I use a section plane to cut my 3D model to create a 2D section. When first created the 2D section uses the colors of the 3D model in creating the section. However upon returning to the model several days later and trying to replace the 2D section (after the 3D model has been updated) the 2D section comes in all shown to be on one layer using that layers color. Even if I attempt to cut a new section plane I get the same results.

What is frustrating is that a coworker can open this drawing (on his computer) and create some new section planes which I can then use to recreate new sections and they work fine until the next week when I attempt to update my sections and again they go all back to one color.

Any suggestions?