The hole in the top of this part is created after the joggle next to it.
when I edit features before the joggle, I find the hole then fails. The position sketch for the hole loses its reference to the surface of the joggled metal, the sketch has missing face- I have to re-select it. (most of the time, but not every edit)
Similarly in the assembly of the part where there is a hank bush in the hole, the mate fails due to missing face (the concentric mate is fine).
I don't recall ever having this problem in previous versions of SW. I am only a few weeks into SW2016. I wondered if anyone else had noticed this issue occurring?