Yes, search your hotbar properly. Sometimes you have to drag it to the left so you can see the hidden spells when the hotbar is already full. The hotbar can be quite tricky sometimes.... I once had the problem that I had " Speak with Dead" from the amulet. Then I got it additionally from the Book of Necromancy by Thay. When I used it, the spell granted from the book was always grayed out to me because it is only available once per LR. The spell from the amulet is permanently available. I confused the two because only one source was displayed to me.... I thought it was a bug at first, until I had to search a bit in the hotbar UI.... I hope this helps.
