Undefine Elevation - Cad Items

I have an issue with some Acad items that I’m not able to set to undefined. After undefining them they will show the “?” for the elevation but will still be up around the elevated data. The only fix I have found is the RPS Copy the data to a new VCE then past it back into my working VCE.

Any thoughts on this problem?

I have seen this a few times, the other fix Ive seen work is to run CAD clean up and delete AEC objects

The cleanup routine in both TBC and RPS doesn’t work for the items I need. This is linework that has been standardized and converted to linestrings.

Marvin possibly has it right. use the RPS convert to linestring. be sure to have the UCS option checked. that could be the issue the UCS.

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I would say it would be a UCS that’s keeping you from being able to change to undefined. You can shoot me the data directly and I can take a look, if you didn’t get this resolved already that is.