Glowstone dust don't drop. Drop glowstone in nether when I mine glowstone.

The mine spell only works on ores, it should not affect glowstone at all.

Are you talking about just normal mining with a pick? If so that is not something this plugin would affect.

That plugin have affect on glowstone normal mining, he is change drop glowstone, you can check it. I use default configs

It really doesn't unless you've configured it.

Please remove the plugin if you think it's causing something like that.

Okey, i understand you. But check it when you will have time.

Tried it just now on my dev server. Unless you have configured world drop rules, your problem lies elsewhere.