Hi,
I need to clash a nested element of elements from linked model with elements in current model using Bimorph.
i have collected the elements from the linked model using the Bimprph node (LinkElementOfCategory) then i have collected the nested elements inside them then i tried to convert them using the node LinkedElement.Element but i get the following error!
Maybe get the actual Element (i.e. a Walls) from the Link and then use this ?
Or maybe something like this 
?
hi @bvs1982 ,
i am actually using the actual elements.
The list of nested elements are generic models named Bounding box.
Give Families the Name of a Revit Object is confusing.
Maybe show some more of your graph so we can help you better.
@bvs1982
clash.dyn (15.8 KB)
linkedModel.rvt (6.1 MB)
Project.rvt (6.0 MB)
So issue start already with the first bimorphNodes…Don’t have much more time to look into this.
NB
I used that node in one of my own graphs and there it also doesn’t
work anymore (it DID work before!) 
.
After some more diggin’.
Try bimorphNodes 4.2.4 (that solved the issue for me)…
…if you not already using that version @Mohamad_Kayali .
Newer versions (so 5.0.0. and higher) use newer versions of Dynamo.
The element needs to be clashed is a box nested in the structural framing family instance.
I have never had a problem clashing an element from a linked model. the problem here is clashing another element nested in it.
I have already created an example Revit file and the dynamo script I have shared.
so as you see in the image below i need to clash the blue box with all walls in the current model
