I died in the end while building an enderman farm by falling into the void.
On me I had a couple stacks of leaves and a couple stacks of various oak materials.
I had my spawn set in a bed outside the portal, so i jumped back in. The end took a LOT  longer to load than usual, and when i respawned part of my base was gone. Some of the oak logs, the glass panes, an ender chest and several shulker boxes of stuff. Most of the oak logs and other things id built were still there except my valuables