I'm seeing a bug with the Split Signals function. It seems like something I remember reading about before, but searching the forums, I can't find anything about it.
When I take the split signals function (which doesn't cause a broken run arrow in the user's VI because a function can have unused outputs), and shrink that up, I am left with a single unused output. If I expand the split signals upwards from the top, then shrink it back down, I am left with an unused output at the top that I can't get rid of.
I saw this in LV 2012 on my work XP machine, and LV 2013 on my laptop.