Need help fixing bug in Magitek menu

You should check FF3USME first to make sure that all attacks they aren't meant to have are ??????? (the last spell ID on the list). It's an easier check to make.

But... I think it might be being caused by the spell name extender. I've rearranged the Magitek menu before without problems using FF3USME (and even given Terra a completely separate set of abilities), but it caused some weird behavior when I tried it on a project with the name extender.
As for what might be causing the glitch... I don't know. Maybe the name extender considers the last index spell to be an actual spell, instead of an end marker, and so it's trying to update the text display for that spell and thereby triggering Magitek's targetting override. The Magitek menu DOES have some supercedence over the regular spell editor, such as who is targetted by the spellcast.