Ungrouping when exploding blocks - (6.4.18124.12321, 05/04/2018)

Groups within blocks are ungrouped when exploding said block.

Seems like a new bug for Rhino 6

Groups have never been retained in Blocks.
It’s not a bug, rather a wish to make it work in future.

My mistake!

I guess that will make start blocking rather than grouping more often then.