As the title states, it looks like the Blood Angels Leviathan is marked as no longer available on the US site. I don't see anything else marked at this time, so it could be the mold needs to be redone. It's a fairly new kit, so to me this is probably the most likely.
I wouldn't be surprised if it is moved to no longer available from the other warehouses once the current stock runs out. It could be a while before it comes back, so if you're looking to have that kit, might be worth picking it up sooner rather than later.
Edited by WrathOfTheLion, 04 February 2021 - 04:55 PM.