In our system we have one very heavy page where there are several IG controls. Suddenly out of the blue we started getting Undefined error. I have verified in our source control and there was no code change on the page. After bit of debugging, I finally found the method that is throwing this erorr. Below is the method where the erro came from. The "grid.oldIgtblGrid" was not being defined. Any advise will be appreciated.

function igtbl_updateGridsPost(grid) {
if(!grid) return;
igtbl_updateGridsPost(grid.oldIgtblGrid);
grid.update();
}

This is regretably kind of an emergency and interesting enough when I posted in the priority support, only 10% of the time I could use thier advise and regretably because of some of those issues we had to use RAD controls in some locations rather than following standard IG every where.