Notice: Undefined index: #title in webform_expand_select_ids

The issue still exists in beta3.

I'm not using Select (or other). Is there something else I can look at to better describe my form? I have Devel installed and can add some debugging code if it helps.

I've done a little debugging to see what's happening when attempts to reference $element[$key]['#title'] produce an "Undefined index" notice. In each case the iteration of the foreach loop is attempting to process a multicolumncheckboxesradios-table-open element that is itself an array of elements, none of which is "#title". I've attached a screen shot that shows one sample value of $element[$key].

The issue here is in the way the Multi-column checkboxes radios module constructs these elements. It doesn't include a title, which means that we can safely not worry about it containing scripts or CSS. One way to fix this would be to check if $element[$key]['#title'] is set before attempting to reference it. That is, change this:

$element[$key]['#title'] = webform_filter_xss($element[$key]['#title']);

to this:

if (isset($element[$key]['#title'])) {
    $element[$key]['#title'] = webform_filter_xss($element[$key]['#title']);
}

Does this look reasonable?

Hmm, I have a short memory :). I just did some digging through the issues queue for the Multi-column checkboxes radios module and found an issue (#1600540: Undefined index: #title in webform_expand_select_ids()) that I submitted in May 2012 that includes a patch to add the #title elements. It apparently still hasn't been committed.

This issue still exists in 7.x-4.0-rc1. Please see above for a suggested fix.

Patch attached with @DanChadwick's suggestion incorporated.

This issue still exists in 7.x-4.0-rc3.

10: webform-2195305-10.patch queued for re-testing.

Thank you!