It works but, when teleporting to the nether and vice versa, it sends you to a height corresponding to that of the dimension of origin times 4.
example: tp me from the overworld layer 60, and send me to the nether above the bedrock. and from the nether in an intermediate layer it sends you to the underground of the overworld (I don't know if I explained myself well)
Resource pack does not appear to be part of this installation, and even with the resource pack, the (invisible);item once created does nothing when held and interacted with by the player.
example: tp me from the overworld layer 60, and send me to the nether above the bedrock. and from the nether in an intermediate layer it sends you to the underground of the overworld (I don't know if I explained myself well)