HWC SUP 2.1.3 issue

Hi Experts

I am adding a new attribute to my existing MBO.

Whenever I am invoking that attribute in Custom.js like

var wxz = currItem.getData("xxx_login_mbo1_language_attribKey").getValue();

I am not getting this value.

i am debugging through alert like

alert('1")

var wxz = currItem.getData("xxx_login_mbo1_language_attribKey").getValue();

alert("2");

getting alert 1 but not 2

Thank you so much.