As to CBers, AreaEffectCloud(AEC) now can be used as "marker" to mark the coordinates of important command blocks, while I found an issue about AEC with CustomNameVisible:1. When it's teleported to other place, it's display name doesn't follow. Only when re-display the name will it be at the right place.

Steps to reproduce:
·Run the following commands one by one.

/summon AreaEffectCloud ~ ~ ~ {Duration:2000000000,CustomName:"aec"}

/entitydata @e[name=aec,type=AreaEffectCloud] {CustomNameVisible:1}

/tp @e[name=aec,type=AreaEffectCloud] ~5 ~ ~

----- notice that the name didn't move -----

/entitydata @e[name=aec,type=AreaEffectCloud] {CustomNameVisible:0}

/entitydata @e[name=aec,type=AreaEffectCloud] {CustomNameVisible:1}

----- notice that the name display at the right place -----

Run this command to kill the marker:

/kill @e[name=aec,type=AreaEffectCloud]

What I expect is when an AEC marker was teleported, it's display name should follow the entity, instead of just keep staying there.

Hope you can fix it.