Positioning a callout in a step-group relative to the assembly (phew, what a sentence) is also broken. Everything on the right doesn't work, top is bottom and bottom is top and left of the assembly becomes left of the parts-list. In a non-stepgroup (so no multiple steps on 1 page), it seems to work fine.
There might be more that's not working, but there are so many possible combinations of relative to ... and the position
There might be more that's not working, but there are so many possible combinations of relative to ... and the position