I also have the same problem. I have duplicate albums that need to be deleted. I'm not sure how they all got there, but when I try to delete them the pull down menu will not allow me to delete them, even though, the word 'delete' is on the menu but not highlighted.
I seem to have a similar problem with non functioning album that is using up all my storage capacity.
I can't really help you but if more people have the same issue, maybe someone at my heritage will have a look. I have sent an email to this regard without response from them.