Field widget label and help text missing

I just installed the module and chose the "Shorthand input" widget. I added some help text based on the text from the module page, but it didn't show on the node add form. I tried the "CIDR input" widget too, but it wasn't until I tried the "Long input" widget that the help text and field label appeared.

After looking at the code, I found the field_ipaddress_field_widget_form function had a switch statement with cases for each type of widget. The first block handled the "Long input" widget, and had a noticeable difference compared to the remaining two widget code blocks.

Working:

      $element += array(
        '#type' => 'fieldset',
        '#element_validate' => array('_field_ipaddress_validate_long'),
      );

Not working:

      $element += array(
        '#element_validate' => array('_field_ipaddress_validate_long'),
      );

Adding the '#type' => 'fieldset' code to the last two widgets seemed to fix the problem immediately.