Ribbon Won't Equip

[Depression Moon]

I'm playing FFIV again for the third time and I'm having problems with equpping a couple of items I received. I acquired these items in the core of the moon after defeating the lunasaurs. When I went to te menu and tried to equip these helmets, the game wouldn't allow me. Why is that? The item comes up white like a regular item yet it won't let me equip it.

[Captain Maxx Power]

What version are you playing? The main reason that comes to mind is that you've run out of inventory space.

[Depression Moon]

I'm playing the PS version and I haven't run out of inventory space I checked and I don't think that would've been a problem since I equipped stuff before when I had it full and all it did was just switch the items.

[Roogle]

Can you describe the error in more detail? I believe the Ribbon should be equippable by Rosa, Rydia, and Edge, and it may even be equippable by all party members in the game.

[KoShiatar]

I suppose that you already tried the Optimize option, right?

[Depression Moon]

Optimize? No

[Roogle]

I suppose that you already tried the Optimize option, right?

Final Fantasy IV does not have an optimize equipment option in its original form.

[Blue Harvest]

Only Rosa and Rydia can equip Ribbons, so chances are you've tried giving it to Cecil, Kain or Edge.