Editor crashes when duplicating instanced static mesh blueprint

Hi

Most of what was requested can be found in this folder.

https://www.dropbox.com/sh/b89ay3fm8ad43tt/AAAoRKJw2LhDBdgBpAT8F1VXa?dl=0

The crash reporter did not give me the option to “Copy CallStack to the clipboard”

I could not find the UE4.log either.

The blueprint uses instanced static meshes instead of static mesh components

It is very temperamental, sometimes I can copy a blueprint with 2500 instanced static meshes and sometimes it will crash when it is just 1 instanced static mesh.

It may have something to do with the construction script because if I disconnect the node running from the construction script then it is usually OK.

Hope this helps

Thanks