Cropnalyzer not working?

I've been trying to crossbreed some crops, and for some reason the cropnalyzer just isn't working for me.

It does work if I right-click a crop. It just won't scan a seed bag. I put the bag in the upper left slot, and nothing happens.

I've got a fully charged energy crystal in there, and like I said, it does scan crops if I right click.

Am I missing something, or is this a bug?

I'm running 653 with forge 10.13.2.1235 and a handful of other tech mods on 1.7.10. No funky stuff like optifine. It's on a server (and all the mods match those on the server).

Ah, that was it, thanks.

The spotlight I watched (granted, it was out of date) used the crystal. I'm still getting used to experimental.