"Forbidden Legend" is proving to be something of a thorn in my side. Reason being, I found Gerimund's Hall organically while exploring, and quite a bit prior to receiving the directive to seek out the pieces. Therefore, I had already obtained the second Amulet fragment prior to the "official" commencement of the quest. Now, when I highlight "Forbidden Legend" in my quest to-do list, the next "uncompleted" task is to find the fragment I already have. And when I go to Gerimund's hall and re-clear it, the fragment obviously isn't in the last chamber (since it's in my inventory)...but the directive arrow is still hovering over one of the far corners of the cave. Not just that, but based on the "perspective" involved when I move around the marker, it almost looks as though it's pointing me to an inaccessible space well outside, and even BENEATH the chamber, if that makes any sense. There's nothing there to pick up, in any case.
Has anyone else encountered this issue? Is there anything I can do? I'm playing on a 360, so PC console commands are out of the question. So is re-loading an old save, since about 10 real-time hours passed between finding the second fragment, and being sent to retrieve the first. Does the recent patch address this issue? I was prompted to install it yesterday, but have held off on doing so. That said, I'll plug that svcker in in a second if it will fix this. I'm something of a completist when it comes to quests I've started, so I'd hate to think I'm completely out of luck.
Thanks in advance!

