jQuery Grid Plugin - jqGrid

I've encountered a bug after upgrading to the latest version of jqGrid (4.3.1).  I use inline-editing in my grid and under some unknown circumstances (only happening in one row for me right now), the wrong columns are switched to edit mode.  I looked at the values in each column using Firebug and there seem to be no special characters which might affect the grid.

For now I have gone back to using version 4.1.2, but any help or ideas on this situation would be appreciated.

Typical Behavior (note: The "Posting Site" column holds a dropdown, not a textbox.  The width of the column is just short.)

Before:

After:

Problem Scenario

Before:

After:

The contents of the rowactions cell are :

<DIV style="MARGIN-LEFT: 8px"><DIV class="ui-pg-div ui-inline-edit ui-state-hover" onmouseover="jQuery(this).addClass('ui-state-hover');" title="Edit selected row" style="FLOAT: left; CURSOR: pointer" onclick="jQuery.fn.fmatter.rowactions('1','grid','edit',14);" onmouseout="jQuery(this).removeClass('ui-state-hover')"><SPAN class="ui-icon ui-icon-pencil"></SPAN></DIV><DIV class="ui-pg-div ui-inline-save" onmouseover="jQuery(this).addClass('ui-state-hover');" title="Save changes" style="DISPLAY: none; FLOAT: left" onclick="jQuery.fn.fmatter.rowactions('1','grid','save',14);" onmouseout="jQuery(this).removeClass('ui-state-hover');"><SPAN class="ui-icon ui-icon-disk"></SPAN></DIV><DIV class="ui-pg-div ui-inline-cancel" onmouseover="jQuery(this).addClass('ui-state-hover');" title="Discard changes" style="DISPLAY: none; FLOAT: left; MARGIN-LEFT: 5px" onclick="jQuery.fn.fmatter.rowactions('1','grid','cancel',14);" onmouseout="jQuery(this).removeClass('ui-state-hover');"><SPAN class="ui-icon ui-icon-cancel"></SPAN></DIV></DIV>

Thanks,

Mike