CorelDRAW Graphics Suite X6 :: Ellipses / Circles / Pies And Arcs Not Rotating About Center

I have two adjacent circles.  I created two tangent lines between them on opposite sides.  I want to connect the lines to the circles.  So - I make the circle into a pie, and with the node editing tool, drag the nodes around until I see the little info text go from edge to "node" where it snaps on the nope of the line.

Before I start this, the lines are perfectly tangent.  When complete, the lines are no longer tangent and the circle is shifted upwards, and is moved off the perfect tangent by different amount for each line.  I can see a difference at 3200% and 11000% zoom at 0.5 point lines.

This occurs if I rotate the circle, or make the circle into an arc also.

It seems that when the circle is drawn, the center point about which its rotated, and from where the arcs/pies are drawn is not exactly center.  This is happening when I manually rotate it.  It I rotate it giving it a specific degree in the properties bar across the top, it rotates fine.  For instance, repeating this again, the arcs of the circle is below one line, and above the other live by a lesser degree.