On a current Project, I have discovered this bug. It occurs when you are using a point control via an alignment that is set as a secondary alignment but the direction of the alignments are opposite each other. Since some secondary alignments need to be used for more than one corridor, simply transposing the alignment is not possible.
The following image shows a location where the alignments both run in the same direction and work as designed/expected.
This next image shows the same template but at this location, the secondary alignment runs in the opposite direction to the corridor alignment.
It would seem that the bend is being offset based upon the direction of the secondary alignment, while the point is being offset based upon the direction of the corridor. When they both are the same direction, its all good.