So, there I was in the royal pig town, when I heard this loud noise, almost like a bunch of waterfalls. I tracked it down, and there was just a pile of three relics in the middle of the road. I picked 'em up, and the noise continued emanating from this one spot. I relogged, and the sound continued (the relics did not respawn).
Steps to Reproduce
Unknown, simply found the anomaly in town
This issue has not been confirmed by a developer yet.