Bug digging chests
In EC, when digging a chest the object handle now appears when the chest is created. If you click on the object handle you target the chest. The object handle and the targeting window both say "Chest" but the picture in the targeting window gives away whether the chest is Rusted/Standard/Gold.
If the chest is a type you don't want, you can step away from the digging spot and break the digging cycle. Starting to dig again will spawn a new chest. You can repeat this until you get the chest you want.
If you can get a glimpse of the chest through the terrain as your digging, which happens frequently, you can force respawn from that info as well.