That's the thing. I've searched the entire tank. There really isn't a place for the shrimp to hind. I just have some blyxa and 3 crypts and nothing else in the tank.
It may have jumped out, walked somewhere, dried up and died. I have an open top tank and have trouble keeping Amanos. My cherries jump out too, but I have a sustained population.
Once, I found a dried up amano in a corner of my shoe rack 5 feet from tank, all dusty and crusty.
I would think it jumped out, especially since you can't find it, and don't have much hiding places.