[Trexmaster]

If another player is on top of where a N/W/S/E shard is, other players cannot obtain it by walking over it.

To replicate, have one player standing where a shard is, and have another player attempt to move onto the shard's location to pick it up.

This was tested with both players having the prerequisite stone to see the shards in question.

Step by Step version:

1. Acquire the appropriate stone for the shard you wish to test with.

2. Stand on top of a shard's location.

3. Have another player who does not have that shard yet try to move onto the shard's location.

4. The shard being stood on will be unobtainable to other players who have not yet obtained it.