Amour Stand moves?

[CastIronFabric]

I have been watching this closely. 

Although I do have monsters that sometimes spawn in my area because lighting is not perfect I am pretty sure my Armour Stands are moving on relog sometimes without anyone moving them.

That said, the internets do not confirm this.

[LadyWYT]

I'm pretty sure it's just a case of a monster spawning in that room and pushing the armor stand around. This happened quite frequently on the server I play on; friend and I had a proper armory and while it was lit fairly well, there was still a corner or two dark enough for the occasional monster. That, and temporal storms would spawn them inside too.

I really doubt the armor stands themselves move, but the easiest way to test would be to simply play with lore disabled for a while, or otherwise use a mod that prevents monsters from spawning entirely. If no monsters can spawn and the armor stands still move, then they're definitely bugged.