Changing material properties on one wall changes a number of walls

[robdwelle]

Hello,

 

I am having a problem where I select a single wall.  I change the material properties on that one wall.  And a bunch of other walls on the same floor change to the default setting.  It's very frustrating.  Any help would be appreciated.

 

thanks,

[robdwelle]

I open the one selected wall - select materials - and I change the exterior surface material from the default material (natural color siding) to a different color siding.  These are both in the "Plan material" section.  When I do this several other wall segments on the same floor change to the default material (natural color siding).  I am using version x12.

 

thanks,

 

robert

[robdwelle]

Here is the file...I was able to cut it down below 25MB....I am just using it to create renderings so there are no interior walls.  The problem is on the third floor.  I point out the walls in the file...but it seems to be a moving a target.  If you can't open it...I can send it to you directly if you prefer.

 

Appreciate your help.

 

robert

error file.plan

[joey_martin]

You need to make a copy of the wall you want a different material on.