I get the error that has been reported here several times before, in which cases a fix has been submitted, but I can still reproduce the problem.

The only way I solved this issue is by inserting this code in grid.base.js inside the setGridWidth function, at line 2866:

if (lvc == null)

{

return;

}

Just before this line of existing code:

$t.p.colModel[lvc].width += cr;

In other words, it seems it is assumed that 'lvc' always gets a value by the code above, but in my case it just doesn't.

Should this be fixed in a next release, perhaps in a more 'proper' way?