Animus - Omnilex Scroll - Confused

[Faelandaea]

I have Googled like crazy and there is nothing on this, and no one else has this issue so I need to figure out what I am doing wrong.

I want GOOD stats on my weapon - not newbie stats. I dropepd 22 mil (which is pretty cheap, so I am not complaining there) on Grade IV materia of the stats I want on my Relic. However, the scroll will only let me meld Grade I materia. WTF is up with that?

The only lead I found on Google was a vague Reddit where someone said something about having to meld 4 grade I materia before you can do higher levels, so I did 1 DET, 1 Crit, 1 Piety and 1 Spell Speed. It still won;t let me do my Grade IVs. So I figured it had to be 4 of the same stats - tossed on 3 more Grade I Spell Speeds - still can't use the Grade IV spell Speed.

So what's up? What am I doing wrong? None of the tutorials say anything about having to do anything in a certain order. The game simply says, "Hey, dude, grab some Alex and grab the materia of your choice and go wild!" That's the extent of it. If we have minimum requirements or something for this, they need to state it more clearly in the instructions the NPCs give you.

Thanks in advance for any answers.