So at some point blank scrolls used an old outdated graphic. (about 5 exist for "blank" scrolls)
Jump on Heritage and say [searchimage or [searchimages
You can put one of the blank scroll IDs on any item id and if you double click it the client will want a target.
I reported it and it was fixed about 2 years ago, it now uses the right ItemID. Since Heritage is 3 years old, you used to be able to buy the wrong itemid from the Scribe. Maybe this is a wrong one? One of us would need to see it in-game.