Steema VCL - trying to rotate a TPolarSeries.Pointer.Picture

Question

I am displaying an aircraft symbol at the center of a chart using a TPolarSeries. My series has one point (angle,radius) = (0,0). I set the series property series.Pointer.Picture.Bitmap = [my airplane pic].

I rotate the series labels 90 degrees so zero degrees is up (north).

I then rotate the series when processing user data by using the method series.Rotate(Int([degrees])). The series labels move accordingly, but the aircraft (pointer image) does not rotate. I would like the aircraft to always point to the zero degrees label.

Any ideas?