Because they're two different underlying issues.
Why didn't you just keep posting in the same thread and/or use the editing "cog" icon at the thread title for changes instead of making 3+ threads?
Well, finally laid my hands on Murkmire housing and well... I would say that grouping is convinient, but gosh it's buggy. I mean, I can't even make multiple bindings child to parent without item positions being messed up after I logout.
Like a third of groups with 5+ item count get scattered (mainly parent is the one which has incorrect position)
And the biggest problem is that I cant undo this error except removing all conections, moving items separately and reapplying them again.
I really hope that this will be fixed ASAP, since it is quite housebreaking behavior