Woops, it looks like the issue comes from the Extended Geometry component ; if I reference the block using one of the ref component, everything works as expected.
It looks like the Extended Geometry component internalize blocks automatically.
Hi, this is indeed an issue with the Extended Geometry component. It’s on the list, but I haven’t gotten to it yet. In the meantime, you can use a GUID component to reference objects and/or internalize them, and then pass the guid into the Extended Geometry component to have it reference the blocks.