Rehosting muitple elements to walls in linked model

Hi all,

I am an MEP engineer working on a large new hotel development. A new architect has recently joined the scheme, replacing the old architect and thus superseding their model. When these new model(s) are loaded in our central file, all elements (4300 of them) lose their association with the walls they were hosted to. Has anyone had a similar experience of this and how this could be solved using dynamo?

Thanks

Prepare sample in rvt, share it, we’ll see how to solve it.