PmgShape rotation

Hi,
try to use PmgShape 'Arrow' with 'Rotation enabled'. Problem with 'Substitution value for property: Angle 0-360'.
Angle is binding to PmaData variable. Then i change 'Substitution value' in Graphical editor - 'Arrow' change 0-angle position, but in runtime - 'Arrow' not react for this property change.
How it must work? In help i don't found related info..
try to use PmgShape 'Arrow' with 'Rotation enabled'. Problem with 'Substitution value for property: Angle 0-360'.
Angle is binding to PmaData variable. Then i change 'Substitution value' in Graphical editor - 'Arrow' change 0-angle position, but in runtime - 'Arrow' not react for this property change.
How it must work? In help i don't found related info..