This matter of Rhino importing hundreds of blocks and nested blocks when one inserts a DWG or Step file is a major hassle and time eater. I tried to install a plugin called ExlodetoLayers but that’s only for the Windows versions. Even after exploding and deleting every last bit of the imported file I still get an error!!
This is an unwanted adventure and second rate performance for such a mature application.
It’s a WTF issue, don’t you think?
Qutting the application and restarting doesn’t solve the issue.
Running the explode blocks command is also useless.