[Mikuel]

Sooo... I went to mine for a bit, got random encounter, there was that horse carriage top right. Didn't happen again, didn't remember to check if I could interact it before my mercs killed the jammer.

The red tint is from my screen filter, don't worry about it.

Update: Found more in camp of someone named "Tyrant". Fully background objects.

[Miller]

To clarify on this matter given the confusion.

This seems to occur when a camp despawns with event placeables inside of said camp, appearing in other instances without despawning properly.

[Neus]

Event spawned placeables that are placed into camps or other dynamic maps will have to be cleaned up by the event staff. To be honest, I thought there was a restriction to prevent them from spawning things in dynamic maps, but apparently not.