Game Mechanics: Magician Research not working

[Nukku]

Hello, I petitioned about this and Amelinda advised I post this bug here. Im not sure if this is happening for all magician spells or just specific ones as I only had the mats for one. My research skill is 202 I believe and a guild mate asked me to do a combine for her. The spell she needed was level 24 Earth Pet spell "Summoning: Earth." The mats for this spell are: Words of Coercion, Spell: Lesser Summoning: Earth, and Gloves of Rallos Zek. I put 1 of each of these items in the elemental grimoire tome and got an error message saying something close to "You cannot combine those items in that tome" or something very close to that. I had no problems making that spell when I needed it and I tried buying a new elemental grimoire, tried putting the items in different orders, and in different boxes in the grimoire and got the same error message as did she. Hopefully this is just a bug with this spell but until I get mats for other spells I wont know, sorry I do not have more info. Thanks for everything you all do to make this server awesome.