In IE, the issue navigator hides the issuelink cell with a title attribute that has unescaped " (quotes).
But the problem only occurs if the last/closing quote is placed on a new line like the following example:

<td class="nav issuelinks">
  <a href="/browse/TST-123" title="some title "with quote" on new line
  "><strike>TST-123</strike></a>
</td>

In firefox, the above looks fine (isnt hidden) but the title value is cut off and only shows tooltip with text: "some title " ignoring the rest of the title