I was going around caves lighting them up in Creative mode. When I found a dungeon. Went in, and the spawner is a pig spawner? Also the single chest is empty.

This is a Single Player world, opened to LAN. I am connecting to LAN, while my wifes account is sitting idle at her base (Long Story).

There are no mods. This is completely vanilla.

Here is a screenshot

I went straight into survival to see if this would change it, but no luck. No loot in chest still either.

Restarted the world (I quit, then wife quit, then wife loads up, opens to LAN, then I join). Still pig. No spawns, with light or without. Added dirt, maybe pigs need dirt to spawn on. Nope.

Whats happening here?

Details:

• Launcher: 1.6.61
• World version: 1.10.2
• Optifine Version: 1.10.2-OptiFine_HD_U_C2