Grid - Row editting - messes up after adding more columns

Hi,

I have a basic grid with row editting. I have a few columns defined as hidden : true. The user can use the column menu to display these additional fields.

With default set of columns, row editting works perfectly. But after the user adds a few columns to his view, roweditting messes up completely. Any ideas?

Screenshots below-

1. Row editting working with default columns-

works.jpg

2. Row edditing after I add more columns -

fails.jpg