Error on properties event "onEditFinish"


in the vanilla version of Innovator12 I have a simple method that change the bgcolor on a specific properties if the value can be "wrong"

the methos is a clientSide method very simple:

//change color bg

var cell = gridApplet.cells(relationshipID,colNumber);


With the newer version (tried in sp9 and sp4) the method returns an error:

Seem the method tried to modify the property adding a suffix "_D"
is something change or is a bug ?

I tried other event (eg onChangeCell) but nothing change

the method is triggered in a grid.