Parentheses around optional small note collision with augmentation dot

In the attached "Excerpt", and measures 153-154 of the full piece, I'm using a small unstemmed voice 2 note with parentheses to show that the high note is optional. The dotted half-note on the g-sharp has the augmentation dot outside the parentheses, no collision. The dotted half-note on the b has a collision between the dot and the right-side parentheses.
One has to assume that the algorithm is working properly on the g-sharp, but why not on the b?
For what it's worth, I tried using the parentheses from both the Accidentals and the Note Heads palettes, no difference.

Thanks,