PhysX Bind Strength relative Invert is not work?

[dMiura]

Checking the Invert checkbox in the Strength relative to property of PhysX Bind does not change the calculation result. 
Recalculation does not occur even if the checkbox is turned on or off. 
Furthermore, if you check the box, select another operator, and then return to PhysXBind, the checkbox disappears.

The sample scene I uploaded was created by creating a tyFlow, creating a Simple PhysX Flow from the presets, and adding a PhysX Bind operator.

[tyFlow]

Whoops, looks like I never implemented that invert checkbox - will fix.

However, Value operators have now replaced the old relative-to-property settings throughout tyFlow, which is why it is hidden when unchecked (only unhidden in scenes where it was previously checked for legacy purposes/backwards compatibility).