[jQuery] After tab through menu - it disappears

[jQuery] After tab through menu - it disappears


I believe I found an accessibility issue with superfish. I have the
"sf-
menu" ul as the child of another list item. After tabbing through the
entire sf-menu, it disappears. How might I fix this?
This is happening in both IE and firefox.
It is nested as follows.
ul -> li -> ul sf-menu