How to locate the source object of a 3D "Warning!" message.?

[Anonymous]

I've opened an old AC12 project in AC16, consolidated the libraries, etc.

However, I get 3 "Warning!" messages stating "Normal vector and edge 317 is not perpendicular in pgon 142"

How do I find out which object, or objects, are causing the problem?

[Dwight]

By isolating divisions of the project using the marquee, then further subdividing until you isolate the problem elements.

You can also use the "Select all" function to pick all walls, slabs, etc, to isolate the trouble element category.

[rocorona]

If the error message reports an ID, you can use it with the "Find & Select" command (provided it's not a macro object called from another)