Thank you for confirming this dupe still exists. This is a result of your hardware processing faster than the tickspeed of the game. Resulting in all tiles being queued for the next game update before it can verify that they are part of the same anchor object.

Originally this was solved, but it seems some Terraria engine updates have reintroduced it. Seems to only apply to multi-tile objects, but consistently so. Make the most of it before I patch it!

must crash the wooden table economy