I am doing a Lookup array. I am getting everything except one item

=LOOKUP(L17,L565:M569)

My array:
Dry/Dry 1
Dry 2
Dry/Wet 3
Wet 4
Wet/Wet 5

I am getting the correct information for all of my catagories except Dry. It
will show a N/A. I am not sure why this is happening. Any input to this
insanity will help?

Thank