1. Open LHI to Genesis 5:4
2. Select and copy מֵאָה via the right click context menu
3. Paste into a morph search selecting lemma 1 from the drop down
4. Try to enter @ to specify the form you want - the @ sign insists on placing itself before the Hebrew rendering the search unusable.

Mind you, I would have sworn it was working a few minutes ago - but the error is completely repeatable now.