Thanks for the quick reply, it happens regardless of lags however. Usually after I modify and overwrite a script within an existing session. It keeps trying to enchant an non-existent item despite the fact that the item had already crashed earlier on. It's not that it takes a bit longer, just that it fails to recognize the attempt as a fail despite the crystals obtained. Therefore, it reports of a x/x successfully enchanted items.
There must be a reason, doesn't really change anything in the actual enchanting process, more of a log flaw.