jQuery Grid Plugin - jqGrid

Using JQGrid 4.3.0, Jquery 1.6.2, and JQuery UI 1.8.16. When editing a row in JQGrid I get a unique issue where the cell that represents the ID of the row copy's to another. So when the grouping is not set the following is done to activate this

• Double click to inline-edit.
• Select the bottom row of the active jqgrid.
• The Record ID copy's to the bottom item.

Has anyone else come accross this?

Things to note:

It does not occur everytime. This makes it very hard to debug
Refreshing the grid gives them the correct ID's. However any edits done on these rows before noticing puts the data onto the associated record of the duplicate ID.

The row events are the following when the data is first laoded into the table by a remote handler.

                onSelectRow: tableRowSelect,
                ondblClickRow: tableRowDoubleClick,