Hi Gustavo,
I noticed your issue seems to be resolved, but I wanted to share an alternative solution that might work well for similar situations. We encountered a similar problem during our work, which led us to develop a specific command for cases like this.
When a block is created, it is assigned to the active layer at that moment. Even if you copy or move it to another layer, the block components still belong to the original layer. While working with the parent layer turned on can be a workaround, it often causes confusion, especially when you need to edit objects separately.
The ExplodeBlockInSameLayer command helps in such cases. It allows you to explode a block while keeping its geometry on the designated layer. If you first organize furniture (or other objects) by layer while they are still blocks, you can later explode them without the hassle of manually reassigning each piece, making the process much more efficient.
This command is part of byrhinogadget, a free Rhino plugin that includes many useful tools. You can install it via Food4Rhino or by searching for “byrhinogadget” in Rhino’s Package Manager.
Below are the introduction page and a demo video:
Plugin introduction page: Free plugin - byRhinoGadget
YouTube video: https://www.youtube.com/watch?v=1E5_0Mjc6lA&ab_channel=byRhino3D
(The video is in Korean, but you can enable automatic English subtitles for better understanding.)
I hope this suggestion is helpful! Let me know if you have any questions. 