jQuery nth-child bug?

Field 3 inputs should all contain 'A' but in Chrome and Safari the first A appears in Field 4.

HTML

<body>
      <div class="quantity-form"><br>
          <table class="table" id="tbl-shirt-details" cellpadding="0" cellspacing="0">          <tbody>
       <tr class="rowa"><td class="col1 cell"> 
           <select>
               <option value="Small">Small</option><option value="Medium">Medium</option>
               <option value="Large">Large</option><option value="XX Large">XX Large</option>
               <option value="XXX Large">XXX Large</option></select></td><td class="col1 cell"><input type="text" value="1111111111" /></td><td class="col1 cell"><input type="text" value="222222222" /></td><td class="col1 cell"><input type="text" value="33333333" /></td><td class="col1 cell"><input type="text" value="44444444" /></td></tr>
<tr class="rowa"><td class="col1 cell"> <select><option value="Small">Small</option><option value="Medium">Medium</option><option value="Large">Large</option><option value="XX Large">XX Large</option><option value="XXX Large">XXX Large</option></select></td><td class="col1 cell"><input type="text" value="1111111111"></td><td class="col1 cell"><input type="text" value="1111111111"></td><td class="col1 cell"><input type="text"></td><td class="col1 cell"><input type="text"></td></tr>
<tr class="rowa"><td class="col1 cell"> <select><option value="Small">Small</option><option value="Medium">Medium</option><option value="Large">Large</option><option value="XX Large">XX Large</option><option value="XXX Large">XXX Large</option></select></td><td class="col1 cell"><input type="text"></td><td class="col1 cell"><input type="text"></td><td class="col1 cell"><input type="text"></td><td class="col1 cell"><input type="text"></td></tr>
</tbody></table></div>
</body>

JavaScript

console.log( $(this).find(':input').eq(0).val() );