Why do items in my Inventory Library belong to Alexandria Linden? I can't rez them.

[Issumagamayunga]

Why do items in my Inventory Library belong to Alexandria Linden? I can't rez them on my land anymore.

My purchased items still belong to me and I can still "wear" items from my Inventory Library.

[Rolig Loon]

Items in your Library folder are provided free by Linden Lab to all residents, and Alexandria Linden is the one in charge of that collection.  As long as items remain in that folder, they will show her as the owner. If you want to use an item, you should be able to drag it from inventory to the ground to rez it.  If not, then drag it first to one of your other folders first.  When you do that, you'll notice that Alexandria is no longer shown as the owner.  You are.