I have 2 objects (an oven and a window sash) that no matter how many times I explode and regroup them separately they will group themselves together. The oven was a block instance at one point but I blockexploded it before all of this.
I exported just these 2 objects from a much larger file so I could upload. If anybody can take a look it would be appreciated!
window and oven grouped.3dm (12.3 MB)