Today's Birthdays not showing up in WGO

[BGObsession]

I have the option to show 'Today's Birthdays' enabled in my 4.2.1 board's admin cp, but this function has never worked since upgrading to 4.2.1. Is anyone else experiencing this? Anyone got a fix for it? Thanks in advance for any input!

The code text in the FORUMHOME template is as follows:

<!-- today's birthdays -->
<div id="wgo_birthdays" class="wgo_subblock section">
<h3 class="blocksubhead"><img src="{vb:stylevar imgdir_misc}/birthday.png" alt="{vb:rawphrase todays_birthdays}" />{vb:rawphrase todays_birthdays}</h3>
<ol class="commalist">
<vb:each from="birthdays" value="row">
<li><a href="{vb:link member, {vb:raw row}}">{vb:raw row.username}</a><vb:if condition="$row['age']"> ({vb:raw row.age})</vb:if>{vb:raw row.comma}</li>
</vb:each>
</ol>
</div>
<!-- end today's birthdays -->